 |
| |||
| acoustical reduction factor | |||
| noise insulator factor | |||
| noise insulation factor | |||
| sound insulation coefficient; sound-proof coefficient; noise insulating factor | |||
|
隔声系数 : 1 phrase in 1 subject |
| Geophysics | 1 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips