| 1. | Hearing protectors - testing - acoustic test methods
护听器.检验.声学试验方法 |
| 2. | Method of acoustic test of horns for motor cycles
摩托车喇叭音量的试验方法 |
| 3. | Application of acoustic testing technique in fengshan copper mine
声波测试技术在丰山铜矿的应用 |
| 4. | 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 |
| 5. | Internet phone electro acoustic test set
电话机电声分析仪 |
| 6. | 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 |
| 7. | 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 |
| 8. | 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 |
| 9. | Microphone - in - real - ear and acoustic test fixture methods for the measurement of insertion loss of circumaural hearing protection devices
测量头戴听力保护装置插入损耗的真耳内扩音器和声试验器具试验方法 |
| 10. | It is important that acoustic test is applied to valve leakage testing and evaluation . quadrupole sources come from leaking gap . dipole sources occur in complex structure valves through analyzing leak in valves
通过对承压阀门内漏过程分析表明，在阀门湍流流场中，因为有泄漏缝隙的存在，必将产生四极子声。 |
