low-noise level
| transformer
| low noise level | |
| textile | 低噪音 |
| transformer | |
| avia. | 纠正仪耦合放大器; 互 感器 |
| dril. | 转换器 |
| geophys. | 变压 器 |
| hydroel.st. | 变换器; 变量器; 互感器 |
| hydroel.st. од. | 变压器 |
| radio.amat. | 变压器 |
| sport. | 变压器 |
| |||
| 低噪音 | |||
|
low-noise level : 5 phrases in 4 subjects |
| Air defense | 1 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Technology | 1 |