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sweep period | |||
scan period | |||
scanning period; scanning cycle | |||
| |||
sampling cycle | |||
| |||
rundown |
扫描周期 : 16 phrases in 9 subjects |
Air defense | 3 |
Aviation | 1 |
Electronics | 1 |
General | 1 |
Project management | 1 |
Space | 2 |
Technology | 4 |
Telecommunications | 2 |
Ultrasound | 1 |