non-return-to-zero mark
| signal
| non-return to zero—mark abbr. | |
| avia. | 非归零------- 标记 |
| signal abbr. | |
| gen. | 打信号 |
| bridge. | 信号 |
| hockey. | 手势 |
| hydroel.st. | 标志; 符号 |
| radio.amat. | 信号 |
| sport. | 手势; 旗势 |
| tech. од. | 信号 |
| telecom. | 通信 |
| |||
| 非归零------- 标记 | |||
| |||
| 标记不归零制 | |||
|
non-return-to-zero mark : 5 phrases in 3 subjects |
| Electronics | 1 |
| Space | 2 |
| Technology | 2 |