 |
| |||
| 複巻特性 | |||
|
caratteristica di : 7 phrases in 3 subjects |
| Electric motors | 3 |
| Electrical engineering | 2 |
| Vacuum tubes | 2 |
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