| 1. | Specifications for integrating - averaging sound level meters
集成平均声级测量仪规范 |
| 2. | Standard guide for measurement of outdoor a - weighted sound levels
室外a加权声级测量 |
| 3. | Electroacoustics - sound level meters - specifications
电声学.声级计.规范 |
| 4. | Power transformers - part10 : determination of sound levels
电力变压器第10部分:声级测定 |
| 5. | Acoustics . preferred reference quantities for acoustic levels
声学.声级用优选基准数值 |
| 6. | Stationary motorcycles , measurement of exhaust sound levels of
静态摩托车排气声级的测量 |
| 7. | Sound level for 6kv 500kv power transformers
6kv 500kv级电力变压器声级 |
| 8. | Sound level for passenger cars and light trucks
乘用车和轻型卡车的声级 |
| 9. | Electroacoustics - sound level meters - part 1 : specifications
电声学.声级计.第1部分:规范 |
| 10. | Electroacoustics - sound level meters - part 1 : specifications
电声学.声级计.第1部分:规范 |
