 |
| |||
| gated-beam tube (一种锐截止和阳极电流极大的五极管) | |||
| gated beam tube | |||
| gated-beam tube | |||
| 选通电子束管: 2 phrases in 2 subjects |
| Air defense | 1 |
| General | 1 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips