null sequence
| net-work
| null sequence | |
| busin. | 零序列 |
| el.mach. | 零 序 |
| net work | |
| econ. | 网络 |
| hydroel.st. | 纯功; 有效功 |
| tech. | 净功 |
| |||
| 零序列 | |||
| 零相序 | |||
| 零序 (列) | |||
|
null sequence : 20 phrases in 4 subjects |
| Electric machinery | 17 |
| Electronics | 1 |
| Space | 1 |
| Technology | 1 |