 |
| |||
| electron-beam instrument; cathode-ray device | |||
| electron-beam tube; electron-beam valve | |||
| electron valve | |||
| электроннолучевой прибор: 6 短语, 3 学科 |
| 军队 | 1 |
| 技术 | 4 |
| 电子产品 | 1 |
|
| |||
| electron-beam instrument; cathode-ray device | |||
| electron-beam tube; electron-beam valve | |||
| electron valve | |||
| электроннолучевой прибор: 6 短语, 3 学科 |
| 军队 | 1 |
| 技术 | 4 |
| 电子产品 | 1 |