517| 0
|
KS I ISO 11094-2019 Acoustics — Test code for the measurement of airborne noise |
匿名
发表于 2019-11-24 20:22:52
|阅读模式
| |
|小黑屋|标准知识分享 ( 闽ICP备19022192号-2 )
GMT+8, 2024-5-20 19:31 , Processed in 0.187500 second(s), 23 queries .