| 1. | Anechoic chambers . part 1 : shield attenuation measurement 消声室.第1部分:屏蔽衰减测量 |
| 2. | Anechoic chambers - part 1 : shield attenuation measurement ; german version en 50147 - 1 : 1996 消声室.第1部分:屏蔽消声测量 |
| 3. | Pic the audition room 图片说明:消声室 |
| 4. | Anechoic chambers . part 2 : alternative test site suitability with respect to site attenuation 消声室.第2部分:与位置衰减相关的替换试验位置的适用性 |
| 5. | There are anechoic room , audition room , function test room , and three - dimensional machine etc 检测中心包括全消声室试听室例试室三维测量仪等检测设备。 |
| 6. | Acoustics - determination of sound power levels of noise sources - precision methods for anechoic and semi - anechoic rooms 声学噪声源声功率级的测定消声室和半消声室精密法 |
| 7. | Anechoic chambers - part 2 : alternative test site suitability with respect to site attenuation ; german version en 50147 - 2 : 1996 消声室.第2部分:备选消声测试场的适用性要求 |
| 8. | Field balancing equipment . description and evoluation . fth : laboratory methods in anechoic and semi - anechoic rooms 现场配平设备.说明和评价.在消声室和半消声室里进行评价的实验室方法 |
| 9. | The the room volume is 1512 m3 , bottom acoustic noise is lower than 18db , and the testing system is from b k company of danmark 消声室容积1512立方米,本底噪声低于18分贝,采用丹麦b k公司的检测仪器。 |
| 10. | Acoustics - determination of sound power levels of noise sources using sound pressure - precision methods for anechoic and hemi - anechoic rooms 声学.利用声压测定噪声源声功率级.消声室和半消声室用精密法 |