positive phase-sequence
| voltage relay
| positive phase sequence | |
| oil | 顺相序; 正相序 |
| positive phase-sequence | |
| el.mach. | 正序 |
| voltage relay | |
| auto. | 电压继电器 |
| |||
| 正序 | |||
| 正相序 | |||
| |||
| 顺相序; 正相序 | |||
|
positive phase-sequence : 9 phrases in 3 subjects |
| Electric machinery | 3 |
| Electronics | 4 |
| Technology | 2 |