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通导期; 有电期间 | |||
工作期间; 接通时期 | |||
接通时间[期] | |||
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合闸期间; 工作期间; 导通时期 | |||
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接通起动时间 | |||
闭合周期; 工作周期 | |||
工作期间 |
on period : 31 phrases in 14 subjects |
Business | 4 |
Commerce | 3 |
Earth sciences | 2 |
Economy | 3 |
Electronics | 3 |
Exhibitions | 1 |
Finances | 3 |
Footwear | 1 |
International trade | 2 |
Management | 1 |
Metallurgy | 2 |
Oil / petroleum | 2 |
Space | 2 |
Technology | 2 |