振鳴點 的英文怎麼說
中文拼音 [zhènmíngdiǎn]
振鳴點
英文
singing point-
Heat mirror ? can eliminating disadvantage of ordinary insulating glass ' s resonance, according to a test, ordinary insulating glass can insulate about 29db noises, but heat mirror ? can insulate about 34. 5 db noises, with more than 5 db improvement of sound proving capability over ordinary insulating glass
消除一般中空玻璃共振共鳴的缺點,至少增加五分貝值的隔音性能,據測試,普通中空玻璃可隔絕29分貝左右的噪音,而熱鏡玻璃可隔絕34 . 5分貝左右的噪音值。
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