| 1. | Hearing protectors - testing - acoustic test methods
护听器.检验.声学试验方法 |
| 2. | Preparation of the accreditation annex of acoustical test standards
声学试验标准的审定附件的编码 |
| 3. | Hearing protectors - testing - part 2 : acoustic test methods
听力保护器.试验.第2部分:声学试验方法 |
| 4. | Hearing protectors - testing - part 2 : acoustic test methods ; german version en 13819 - 2 : 2002
护听器.试验.第2部分:声学试验方法 |
| 5. | Tests in building acoustics - measurements of structure - borne sound produced by technical appliances in buildings
建筑声学试验.建筑物内技术装备产生的结构噪声的测量 |
| 6. | Methods for testing and rating induction units for air distribution systems - acoustic testing and rating
空气分配系统用感应装置的试验及评定方法.第2部分:声学试验和评定 |
| 7. | Methods for testing and rating terminal reheat units for air distribution systems - acoustic testing and rating
空气分配系统终端再热装置试验与评定方法.第2部分:声学试验和评定 |
| 8. | Abstract : acoustical experiment of low noise wall models for testingsection in transonic wind tunnels is introduced in this paper
文摘:介绍了跨声速风洞试验段低噪声壁板模型的声学试验。 |
| 9. | N 1998 , we imported seven sets of b k system including bk2012 , bk4251 and bk2636 , with which can finish the measurement of all the parameter and acoustical test
拥有bk2012声频分析仪bk4231声级校准仪以及bk2636等全套bk传声器测量系统，与消声室配合可进行传声器的全部参数测量及声学试验 |
