| |||
phase-comparison | |||
cycle matching | |||
phase comparison |
相位比较 : 35 phrases in 11 subjects |
Air defense | 6 |
Aviation | 1 |
Earth sciences | 2 |
Electric machinery | 3 |
Electronics | 13 |
General | 1 |
Hydroelectric power stations | 2 |
Information technology | 2 |
Shipbuilding | 1 |
Space | 1 |
Technology | 3 |