noise measuring
| method
| noise measuring | |
| el.mach. | 噪声测量 |
| railw. | 噪声量 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 噪声测量 | |||
| 噪声量 | |||
| |||
| 噪声测定; 噪声测量 | |||
|
noise measuring : 21 phrases in 7 subjects |
| Air defense | 2 |
| Ecology | 2 |
| Electric machinery | 2 |
| Electronics | 2 |
| Geophysics | 2 |
| Otorhinolaryngology | 3 |
| Technology | 8 |