detection tube
| method
| detection tube | |
| mil., air.def. | 检波管 |
| method | |
| gen. | 法; 标准; 水平 |
| environ. | 方法 |
| hydroel.st. од. | 方法 |
| mech. | 电火花法 |
| |||
| 检波管 | |||
| 检波管 | |||
|
detection tube : 4 phrases in 3 subjects |
| Chemistry | 2 |
| Sealing | 1 |
| Technology | 1 |