 |
| |||
| 90。时间相移 (相位差); 90°时差; 90°时间相移; 90°相位差 | |||
| time quadrature: 17 phrases in 3 subjects |
| Electric machinery | 5 |
| Electronics | 8 |
| Hydroelectric power stations | 4 |
|
| |||
| 90。时间相移 (相位差); 90°时差; 90°时间相移; 90°相位差 | |||
| time quadrature: 17 phrases in 3 subjects |
| Electric machinery | 5 |
| Electronics | 8 |
| Hydroelectric power stations | 4 |