|
關注：1
2013-05-23 12:21
求翻譯：As noise levels increase, particularly in urban settings, people crave the calming effects of a quiet environment. The Our Wallsystem can be designed to meet your project's specific acoustical needs; the polystyrene and concrete assembly means less outside noise gets in. With Sound Transmission Class (STC) ratings of 5是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
As noise levels increase, particularly in urban settings, people crave the calming effects of a quiet environment. The Our Wallsystem can be designed to meet your project's specific acoustical needs; the polystyrene and concrete assembly means less outside noise gets in. With Sound Transmission Class (STC) ratings of 5
問題補充： |
湖北省互聯網違法和不良信息舉報平臺 | 網上有害信息舉報專區 | 電信詐騙舉報專區 | 涉歷史虛無主義有害信息舉報專區 | 涉企侵權舉報專區
