| 1. | Sound system equipment - headphones and earphones
音响系统设备.头戴受话器及耳机 |
| 2. | Methods of measurement for transmitter - receiver assembly set
送受话器组合件测量方法 |
| 3. | Measuring methods for performance of transmitters and receivers
送话器和受话器性能测量方法 |
| 4. | Sound system equipment - part 7 : headphones and earphones
音响系统设备.第7部分:头戴受话器及耳机 |
| 5. | General specification for active ant - noise transmitter and receiver
有源抗噪声送受话器组通用规范 |
| 6. | Methods of measurement for telephone receivers
受话器测量方法 |
| 7. | Sound system equipment . part 7 : headphones and earphones
音响系统设备.第7部分:头带式受话器和耳机 |
| 8. | Receiver measuring system
电声测试仪受话器 |
| 9. | Audiovisual systems - sound system equipment - part 7 : headphones and earphones
视听系统.音响系统设备.第7部分:头戴送受话器和耳机 |
| 10. | Methods for measuring transmission performance of telephone handsets and headsets
电话手持送受话器和头戴送受话器的传送性能的测量方法 |
