| |||
| 不归零电平信号 | |||
|
non-return-to-zero level : 7 phrases in 6 subjects |
| Aviation | 1 |
| Earth sciences | 1 |
| Information technology | 1 |
| Space | 2 |
| Technology | 1 |
| Telecommunications | 1 |
| |||
| 不归零电平信号 | |||
|
non-return-to-zero level : 7 phrases in 6 subjects |
| Aviation | 1 |
| Earth sciences | 1 |
| Information technology | 1 |
| Space | 2 |
| Technology | 1 |
| Telecommunications | 1 |