Intambara hamwe na Decibemi

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Kurengera urusaku Windows: Uburyo bwo kuzamura amajwi ya Windows inshuro ebyiri, ishusho yubwoko bwibimenyetso byimbuto, kuririmba

Intambara hamwe na Decibemi 12628_1

Muri megalopolis igezweho, biragoye kubona inguni ituje. Ejo abatumva muri iki gihe ubukana bwibintu bisa. No mu gikari nta gakiza kiva mu rusaku rwo gutwara abantu, babaye abakunzi benshi batwara hafi y'ibigega by'imodoka ku nkombe z'abanyamaguru. Umujyi ntugabanuka nyuma ya saa sita nijoro, kugira igitutu gihoraho kubwumitsi. Kschasty, turashobora kurinda inzu yacu imodoka yacu Hum hamwe nandi majwi yumuhanda - ukeneye gusa kubona amadirishya yishusho idasanzwe.

Intambara hamwe na Decibemi
Veka akenshi yahuye nacyo igitekerezo gihagije kugura Windows nziza ya none - hamwe na Windows yicyumba ebyiri kandi kuva kumurongo wikirere, kandi ikibazo cyo kwishyurwa urusaku kizakemuka wenyine. Ariko sibyo. Uburayi bwigenga hamwe nububiko bwumuryango wubwongereza bwa Windows bimaze igihe kinini, hafi hagati ya 70. HG Ikinyejana cya HG., Reba icyiciro cyindi. AU muri twe iri jambo ryakoreshejwe cyane mumyaka yashize. Idirishya ririnda urusaku ryitwa Windows Ubwoko butandukanye bushobora gutanga ibitekerezo byumvikana kurenza 30Dba (ni ukuvuga ko Decilt yo mu muhanda, rimwe na rimwe kugera ku rwego rw'isuku (45 -50DBA). Ku buryo bworoshye, bukinisha-kwigana no gukora ibintu byidirishya, kunoza insulation yumvikana ntabwo bigira ingaruka cyane bigira ingaruka cyane. Ibi bishushanyo ni ibihe?

Imbere

Ikintu nyamukuru cya idirishya rirengera urusaku ni ikirahure muri verisiyo idasanzwe. N'ubundi kandi, ni ikirahuri cyikirahure kirenga 80% byubuso bwidirishya kandi ni icyarimwe igice kinini cyacyo.

Urwego rwinkunga ikenewe

Nk'uko SUNIP 23-03-2003 "Kurengera urusaku", inzitizi nyamukuru iranga urusaku rw'ubwikorezi ni urwego ruhwanye rw'amajwi ya Laekv kuri metero 7.5 uhereye ku gice cya mbere cyo kugenda. Ubunini bw'iki kimenyetso, urugero, i Moscou kuri Avenue ya Kutuzovys (mu karere ka ARC de Triomphe), mu gitondo cy'impimbano, nk'uko amakuru aheruka, - 78dba. Umuhanda w'urusaku ni urusaku mu rugero runini cyane, kandi imirongo yo hasi-Fusion yiganje, ubushobozi bwinjira muri byo burebure cyane. Ndetse n'idirishya ryiza ryumvikana rifite rantran idasanzwe. Ariko ntabwo hejuru ya 48dba. Ariko ibi birahagije. Ikigaragara ni uko "urusaku" rukuru "mubuzima bwacu mumujyi ni 25-30dba. Ntabwo tubibona, kuko basanzwe bamenyereye, kandi niba bitunguranye "bazitirwa", umva ntayoroherwa. Muri ibi bikomoka kubyerekeranye na snip 23-03-2003 byakomeje, bishyiraho ibipimo byikibazo byo hanze nidirishya: Igishushanyo gisabwa kugirango kigabanye "amajwi" yumuhanda kuri 50bb. Intercom hamwe niyi nyandiko, niba laekv kumuhanda iruhande rwinzu iri ku isaha yihuta ni 65DB, idirishya rigomba kugira 15dba. Hamwe na Laekv, Kugera 70STBE, - 20Dba It..D. Umubare ntarengwa wo kwinjiza amajwi yidirishya yerekanwe muri snip - 35dba (kurwego rwurusaku rurenga 80DBA). Menya ko stIp isaba umwanya wo gushobora kwihangana: ibishushanyo bigezweho bikwemerera gutanga ihumure ryumvikana mu nzu, bigabanya urusaku mucyumba hafi yumuhanda uwo ariwo wose ugera kuri 30-35DB.

Intambara hamwe na Decibemi
Ifoto 1.

Itsinda.

Intambara hamwe na Decibemi
Ifoto ya 2.

Itsinda.

Intambara hamwe na Decibemi
Ifoto 3.

Yucco

Intambara hamwe na Decibemi
Ifoto ya 4.

Ifoto V. Loginova

1-2. Inkunga ya Trocal Umwirondoro wa Plastike iragufasha gukoresha ikirahure cyinshi kuri 40mm z'ubugari, hamwe n'impuguke yo kugeza kuri 42mm (niba ushizeho amakuru kuri 48mm).

3. Kugirango amajwi yinjire ahantu hanyuze mu gace kagana, uwanyuma yuzuyemo ibifuni mubyiciro bibiri: ubanza uhereye imbere, hanyuma hanze.

4. Mu ruhande rw'umuhanda, insulatthane insulation irinda umusozi n'ubushuhe na ultraviolet by plaster cyangwa platbands.

Kora igishushanyo mbonera, kizegera hejuru kubiranga amajwi, biragoye cyane. N'ubundi kandi, nta bundi buryo bwo gusebanya mu murima w'ibishushanyo bisobanutse. Ibikoresho byikirahure-acoustic bifatika, ntibigaragaza imiraba myiza, ariko munsi yabo "swing" no kongera kurangiza urusaku rwicyumba. Ijwi ryumvikana (R) ryumurongo umwe ruvuza ikirahure kireremba hamwe nubwinshi bwa 4mm ni gito, gusa 20-25DB gusa. Kwiyongera kumibare yikirahure kandi ubwinshi bwabo ntabwo buzana ibisubizo bikomeye. Rero, ukurikije ibisubizo byibizamini byakozwe nigishushanyo mbonera nigikorwa cyikoranabuhanga "stroytest" ", itandukaniro ryumvikana rya Windows Ijwi riri hagati yikirahure kimwe na kabiri. Hejuru ya misa ya sash kandi, kubwibyo, umutwaro kubikoresho, izimyabumenyi hamwe nibice byurwego rwiyongera icyarimwe. Nubwo bimeze bityo ariko, abashushanya bashoboye kubona inzira, ntabwo ari umwe, ariko benshi. Kugeza ubu, hariho uburyo butatu bwibanze bwo kongera amajwi ya Windows ebyiri.

1. Kurenga ku guhuza. Kwiga ku ishuri mu masomo ya fiziki, ingaruka zo kongera, shyiramo uburambe bukurikira. Ku nsanganyamatsiko ebyiri zimanika imitwaro ibiri iruhande. Pendulums pendulums ihuza isoko y'umuringa n'intege nke z'intege nke no gusohoka kuri sisitemu ku mwanya uhwanye - kuvuga gusa, gusunika imwe mu bintu bimanikwa. Isoko ryerekana umuvuduko mu mizigo ya kabiri, pendulum ya swing, yo guhinduranya amplitude ya osillations - hari ukuba. Iyi nzira ntabwo igerageza igihe kirekire cyane. Ariko birakwiye guhindura misa imwe mubicuruzwa cyangwa uburebure bwurudodo, aho buhagaritswe - kandi sisitemu yo gusohora izatuje vuba, kandi sisitemu izatuje vuba (hamwe nimpulse imwe). Ni ukugabanya imbaraga hamwe no kurenga kuri sisitemu kugereranya hanyuma uhitamo gukoresha ibirahuri. Icyumba cy'icyumba kinini cy'ikirahure kitari gito (4mm) gitandukanijwe n'ibyumba bingana (6-12mm). Niba uhinduye umubyimba umwe mu ndege (ni ukuvuga, fata amakadiri abiri ya kure yubugari butandukanye), ubwitonzi bwumvikana bwikirahure aziyongera na 2-3dba. Nibyiza kurushaho gukora ibirahuri byikirahure kimwe cyangwa bibiri-byurubuga rwa Windows Bbyi cyane (5-6mm). Ijwi ryumvikana rigoye cyane "gucukura" inzitizi nkiyi, kandi kubera ibi, ingaruka zo guhungabana kwuzuye mu rusaku (ugereranije n'ikirahure gisanzwe cyuzuye) kigera kuri 3,5 st .

Intambara hamwe na Decibemi
Ifoto 5.

Yucco

Intambara hamwe na Decibemi
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Yucco

Intambara hamwe na Decibemi
Ifoto 7.

Tiivi.

Intambara hamwe na Decibemi
Ifoto 8.

"Idirishya nyaryo"

5-6. Idirishya hamwe na asimmetric Windows ebyiri (5) itanga ibitekerezo byumvikana kuri 33Pad. Dukurikije ibiranga kubanza, flap yinyongera ifite ikirahure cyijimye (6) izongera kuri iki cyerekezo 5-6DB.

7-8. Idirishya hamwe na Sash (7) kubworoshye ibikorwa ntabwo biri munsi yidirishya rya euro (8), ariko rirenga kubitekerezo byumvikana bitewe na gahunda nini hamwe na gahunda yubuki.

2. Gukoresha imyuka ya inert. Nkuko mubizi, mubice bitandukanye, amajwi akwirakwizwa ukundi, kandi mu cyuho ntabwo kibaho na gato. Imyuka ya inert "ikora" amajwi ni bibi kuruta umwuka, kandi igice gito gusa cyo gusohora kwanduzwa mu kirahure cyimbere. Igisubizo cyiza kirashobora kugerwaho mugihe wuzuza ikirahure kivanze cya argon (70%) na sulfure itandatu ya squalide (30%). Kugabanuka kwinyongera mu rusaku ni 2.5-4DB. Ariko, intsinzi nyamukuru iboneka murwego rwa 250-3000 HZ, kandi kuri bike, kwinjiza amajwi no kugabanuka gato. Kuzuza kimwe hamwe na esheshatu-ahubwo ni urujijo rukabije - gutera imbere neza: mu cyi, icyumba kizahashyurwa cyane mubihe byizuba.

3. Gushyira mu bikorwa gatatu. Inyitso yo kubaka ikozwe mu kirahure bibiri byangirika (3-6mm), kubasuhuza na firime idasanzwe cyangwa resin. Ibicuruzwa nkibi kubera imiterere yumutima bya polymer bitandukanya amajwi 30-60% kuruta ikirahuri kimwe cyuzuye cyimigezi imwe, kandi neza cyane kumubiri. Guhindukira kuri moceri ku gice cy'ikirahure gitanga ibisubizo bihebuje byo kwitwara idirishya byiyongera kuri 4-5DB, ariko, iki cyerekezo kimaze kugerwaho gusa ku mirongo miremire.

Biturutse Kunezeza

Ibirahuri bitatu-by'ibihure-triplex mu ikoranabuhanga ribiri. Kuburyo bwa mbere, ikirahure gisunitswe na firime (polyvinyleldioral cyangwa reberi ya silicanic) ifite ubunini bwa 3-6 μm. Mu rubanza rwa kabiri, umwanya uri hagati yikirahure cyanditswe nubwiciro budasanzwe bwa kure busutswe umucyo ukize (acrylatet.). Igice cyavuyemo ubunini bwa firime (7-8 μm) kandi nibyiza kuruta kunyeganyega. Nibyo, ibyo bita firime ya acoustic kuri triplex yatangiye kugaragara vuba aha (igice cyabo cyurugero) - kurugero, ikirafu), Sekisui (Ubuyapani-Graint Grall (Ubufaransa). Mu buryo bwiza, baruta resin.

Uburyo bwashyizwe ku rutonde bukunze guhuzwa, kurugero, imashini yikirahure ibirahuri ikozwe kandi ikayuzuza gaze ya inert. Ariko, imvugo ngo "poroge ntishobora guhura" muriki gihe ntabwo buri gihe bikwiye. Kurugero, gutumiza ikirahure cyikirahure cyimodoka ebyiri hamwe nikirahure cyo hanze cyubwinshi bwiyongera, intera iri hagati yikirahure nibyiza gushiraho imiterere yo kuzamura resonance kandi amaherezo yo kugabanuka kwurusaku AMAFARANGA. Birakenewe kuzirikana ibipimo nkiki nkibisa byikirahure. Niba ari binini cyane (ibyumba bibiri-binini byanditseho amadirishya hamwe na gatatu), amadirishya ya sash hamwe nigihe arashobora gukizwa.

Echelon ya kabiri

Muri iki gihe, ibishushanyo mbonera bya flaps namasanduku bikozwe ahanini nimwiyumekirwa. Aba nyuma bashinzwe isura yidirishya no kwizerwa kwayo, murwego runaka rwo guhangana nubushyuhe no mumajwi meza cyane. Kubwibyo, ntugomba kwizera amagambo yamamaza yabagurisha kubyerekeye "cyane cyane" imyirondoro ". Nubwo bimeze bityo ariko, mu gukora inzara y'urusaku, hakoreshwa cyane cyane ku cyumba cy'ibiri ku cyumba cy'ibiri, n'inteko y'icyumba cy'imigereko katanu yimbitse byibura 70mm. Ibi birakenewe kugirango tugire ubushobozi bwo gushiraho ikirahure kidasanzwe, kimwe, nkuko bisanzwe, hari ibibyimba kuruta ibisanzwe (36-40mm). Kschasty, ibyinshi byinshi byashakishijwe cyane - Impuguke "yumwirondoro wa gatanu" Impuguke ", Itsinda rya Vocal), Solgine, Hejuru ya 4000 kandi nziza 7000 (zombi Gealan), igishushanyo cya Brillant (Rehau) (Ubudage bwose), "Ubudage bwose) (Umugi w'Ububiligi), Ububiligi) - Uburusiya) - Reprof, Uburusiya) - busure Byongeye kandi, imyirondoro ya sisitemu yanditse yafashwe neza. Kurugero, umutwaro ukabije kuri buri nteko yumuntu (ni ukuvuga screw, yashizwe kumurongo cyangwa sash) kuri sisitemu yimpuguke za KB ni 50kgs. Ariko biracyari byiza kugira imbaraga zimbaraga kandi, nibiba ngombwa, kongera umubare wa sash cyangwa kugabanya uburemere bwikirahure.

Intambara hamwe na Decibemi
Ifoto 9.

Intambara hamwe na Decibemi
Ifoto 10.

Intambara hamwe na Decibemi
Ifoto 11.

9. Igishushanyo cyo kwishingikirizaho amajwi yikirahure kuva kubyutsa ibyumba byacyo (argon) hamwe ninshuro zumvikana (hano no kurushaho kugeza kubizamini bya laboratoire graverbel).

10. Imbonerahamwe yijwi ryikiruhuko kuva inshuro nyinshi amajwi no gukoresha mubishushanyo mbonera byayo. Triplex ikora neza cyane kandi nkeya cyane.

11. Igishushanyo cyijwi ryumvikana mu idirishya riva mu ijwi ryijwi n'ibikoresho bya kashe ahantu h'ikirahure cy'ikirahure kuri sash (ubushyuhe bwo hanze ni -10 c).

Ibiranga ibirahure na Windows-yambaye ubusa

Formulaire SOUNDPROOFIG, DBA SvetoPropuska,% Igiciro 1m2, rub.
4 (ikirahure kireremba) makumyabiri 90. 410.
4 (I-ikirahure) makumyabiri 83. 800.
4-16-4 * 27. 80. 3600.
4-10-4-10 28. 75. 4100.
4-16-4 (ar) 32. 75. 4300.
6-16-4 32. 78. 4400.
4-6-4-4-4-4-4 33. 74. 4150.
4-10-4-4-4-4-4 33. 70. 4200.
6-10-4-1-10---4 (ar) 34. 74. 4700.
6-10-4-10--4 (ar + sf6) 38. 68. 4700.
4-12-9 (tiplex kurinda urusaku) 42. 69. 6500.
4-10-4-10-9 (Urusaku-rubimenyetso) 44. 60. 6800.
* Muri formulaing formulaing, umubyimba wikirahure na suction yindege (mm) mu cyerekezo cyo mu muhanda; I-ikirahure - ikirahure gikiza ubushyuhe hamwe no gutwikira byoroshye; AR (SF6) - Kuzuza ibyumba bya Argon (imvi zituruka).

Hariho ku isoko nuburyo bwihariye bwo gushushanya bwa Windows- ahanini nibi nibicuruzwa biva mubiti. Idirishya rifite uburebure (butandukanye kandi cyuzuye) ririnzwe cyane urusaku kandi ridakoresheje ibirahuri byihariye na Windows-yanditseho. Ikigaragara ni uko ihame rya asimmetric ryasohotse mubishushanyo byabo: Flap yo hanze yashizwemo ikirahure cya 3-4mm umubyimba umwe, no mubirahuri byimbere. Kurugero, ubugari (ubujyakuzimu) bwa Domus Windows (Finlande - Uburusiya) hamwe nigitambara gitandukanye gishobora kuba 105-220mm. Ni ukuvuga, formula yidirishya ibona uburyo bukurikira: 3- (80-195) -4-10--4 (ubunini bwikirahure nindege muri milimetero mu cyerekezo cyo mu muhanda) byagaragaje neza.

Wokon joinex (Suwede) hamwe na flaps ya falops hamwe nuburusiya bwabo mu Burusiya Fortaling Fortalate isa gato: 4- (40-60) -4-12-4, ariko, ariko, zidahindura ishingiro ryurubanza. Nk'uko ababikora bavuga ko amajwi agera kuri 43Db, kandi niba winjije ikirahuri gito cyangwa kibyimbye (6-8mm). urukuta rw'amatafari ya 1.5 cyangwa inyubako yitsinda ryanyuma). Ariko, iyi mibare ntirashimangirwa no kwipimisha mu Burusiya. Vuba aha, amadirishya mashya ya pulasitike yagaragaye ku isoko hamwe na aluminiyumu ya kabiri ya aluminiyumu, aho ikirahure cyinjijwemo n'ubunini bwa 6mm. Iyi sash yinyongera yahagaritswe hanze yinyandiko kuri hinges hanyuma ikosore ibishishwa (igishushanyo mbonera). Ibicuruzwa nkibi, kurugero, Yucco (Uburusiya): Muburyo bwa plastal, ikoresha umurongo (Uburusiya) na veka imyirondoro. Ariko kubyerekeye imikorere (kandi byumwihariko, kwibwira amajwi) imico ya plastal ya Windows iracyazwi.

Umutekano

Intambara hamwe na Decibemi
Polonino Ijwi ryumvikana kandi rigira ingaruka kubwoko bwa kashe yidirishya hamwe na kashe - ahanini ibyo bikoreshwa ahantu hatunganijwe rya sash na paki yikirahure. Ibizamini byerekanaga ko ibikoresho bya elastike, hejuru yijwi (biragaragara ko gaskets nkiyi ifite urufatiro ruto, rufite imbaraga zikirahure). Ikidodo muri zone yakarere nacyo gitegetswe kuguma kuri delastique no muburyo butuba, ubundi gukomera kwidirishya birashobora guhungabana. Nibyiza cyane guhitamo ibikoresho byubukorikori. Ku bijyanye no ku modoka, "synthetique yera" (EPDM na Silicone) yitwara ku bushyuhe buke bwiza kuruta reberi yahinduwe.

Ibibi nyamukuru bya sisitemu bifite sash itandukanye kandi yuzuye ni igiciro cyinshi: Idirishya nk'iryo rihenze kuruta plastike hamwe na plastike hamwe na pash imwe. Numunyamuryango umwe rero kubyerekeye idirishya ryamadirishya. Ibizamini byakorewe na Glaverbel byerekanaga ko kwiyongera mubunini bwa sash idakwiye biganisha ku kwangirika mubwiza kuri buri kintu cyo kongera imbaraga. Kurugero, idirishya ryigifaransa Sash ni 285.5015mm hamwe na idirishya riringaniye ryinshi (triplex ya acoustic thm. AeSli yabigabanyijemo ingaruka zitambitse, agaciro k'iki kimenyetso kiziyongera kuri 43DB. Rero, Windows hamwe no guhuza kenshi birinzwe urusaku kuruta "bagenzi babo" hamwe nimirima ikomeye. Ibitaro, uwambere arashobora gushirwaho kure hose: impinduka mumiterere yidirishya igira ingaruka kumiterere yubwubatsi bwinyubako, kandi abayobozi babagenzuzi bashinzwe imiturire bahora banga. Avtobre kandi yubatswe-imitako (imisozi ya plastiki hamwe n'ibiti-ibiti byashizeho imitsi) birashobora kunyeganyega rwose: Munsi yimyigaragambyo, iyi myirondoro iratandukanye nikirahure, nidirishya itangira guhubuka no guhungabana kwabo.

Ukeneye Podbyoga

Intambara hamwe na Decibemi
"Ihuriro" muri zimwe zikomeye ndetse n'idirishya ryo kurengera urusaku ntirishobora guhangana n'ikibazo. Niba uri gupakurura amagare hafi y'urugo rwawe nijoro cyangwa ntanganira umuziki uva muri disco, birakwiye ko byumvikana kumajwi yundi cyangwa anzitizi kugirango tumenye inzozi ituje. Ugomba gutekereza kubishyiraho shitingi. Hitamo moderi hamwe numwirondoro wa aluminium wuzuye polyurethane. Igishushanyo nkicyo kizongera amajwi yundi 3-5DB. Igiciro cyikirere cya roller kit kumadirishya imwe - kuva ku bihumbi bya metero 9.

Umuco

Amabwiriza yo gukora kurengera urusaku Windows ikora ibikorwa binini byinzego zisobanutse: "Amadirishya mashya", "Uruganda rwo Gukura", "Uruganda rwa Windows", "Tsar-idirishya ", Yukko (bose - Uburusiya). Igiciro cyibicuruzwa nkibi birahindagurika muburyo bugari cyane. Biterwa nibikoresho nuburyo bwo kurangiza amakadiri, nka Windows-yanditseho inshuro ebyiri (gushiraho ubushobozi bwiyongereye "kugirango habeho imbaraga zisanzwe), ibishushanyo mbonera byibisanzwe. Amahitamo yoroshye yakozwe mu cyumba cyera cya PVC kumwirondoro hamwe nidirishya ryikipe ibiri (4-10-4-16-4 hamwe no kuzuza amafaranga ibihumbi 7-8. Kuri 1m2. Gukoresha ACOustic Chatplex izongera iyi mibare ku ya 25-30%. Igishushanyo cy'ibiti hamwe na sash imwe ihenze cyane - kuva ku bihumbi 9. (Pine) no kuva ku bihumbi 9. (igiti, igiti gitukura) kuri 1m2. Ubwoko bwa Finilande bwanditse hamwe na sash yatandukanijwe, bikozwe mu bigo by'Uburusiya, bitwara kuva ku bihumbi 12. Kuri 1m2.

Umwuka wo mu kirere

Intambara hamwe na Decibemi
Siegenia-Aubi rero nyuma yo gushiraho Windows igezweho munzu, iruye kandi nta bunyabukire bwiyongereye, ni ngombwa gushyira vant Valve. Ariko, ibikoresho nkibi birashobora kuba bibi ibintu byumvikana byidirishya. Rero, kwinjiza urusaku rwikorewe mugihe cyo kwishyiriraho umurongo ushobora kugabanuka ka 2DB (kuzenguruka indangagaciro ", ariko ibyicapure", ariko ibyicapure byabo biri hasi cyane). Kuraho ibibyimba bifasha ibikoresho byihariye kubayobozi ba Ventlipano - Abasuruke ba Acoustic hamwe no kurinda urusaku. Witondere kwishyiriraho, gutumiza Windows nshya.

Amasezerano yanyuma

Uruhare rukomeye mugushinyagurira amajwi rukinwa nubwiza bwo kwishyiriraho no gushiraho ikimenyetso cyo gushiraho. Niba na skeleti ntoya yikadiri yemerewe mugihe ushyiraho, sash irashobora guhuzwa nayo. Urujya n'uruza rw'umwuka ruri mu mazi ya cumi na kimwe cya milimeter uzimara gusa mu bukonje, ariko ijwi rizajya rinyuramo no mu mpeshyi n'impeshyi. Igenzura, imanza nyinshi, icyuho cyashyizwe ubu cyuzuyemo polyurethane ifuro, iyi ni ikuba rishyushye cyane hamwe nurusaku. Ariko, birakenewe kwemeza ko ibisobanuro byuzuye byuzuye ubugari bwumwirondoro wa agasanduku - kuzigama ibikoresho ntibitemerwa. Kugirango ibeho hamwe nigihe, ntabwo byasenyutse kandi ubwitonzi ntibwibujijwe, igomba kurindwa ubuhehere na ultraviolet. Kuri iyi, kaseti idasanzwe ikoreshwa (Ove-Amashami, uhereye mumuyaga). Kurasa kaseti, birakenewe gutandukanya neza ahantu h'imbere no hanze. Bigira ingaruka mbi ku majwi manini cyane (hejuru ya 30mm) agaciro k'inteko. Idirishya ntirishobora gukosora neza mu gufungura, kubwibyo, "ikora" nkicyiza kandi ingaruka zo kongera gusohora urusaku mucyumba zongerewe.

Kugira ngo wirinde gushyingirwa kw'iteraniro, mbere ya byose ntibigomba kugarurwa nigikorwa cyo kwakira akazi, kivuga kuri yoroshye. Wumve neza gukora ibirego, kuko ufite uburenganzira bwuzuye. Witondere gutanga ingwate kubikorwa byo kwishyiriraho: Igihe cyacyo gikwiye kuba byibuze imyaka 2.

Ubuyobozi bw'amabwiriza burashimira isosiyete "Profin Rus", ubupfura, Veka Rus, isosiyete y'ikirahure cy'Uburusiya, "itsinda rya acousti" kugira ngo rifashe mu gutegura ibintu.

Soma byinshi