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warm up period | |||
warm-up time | |||
time warm-up | |||
preheat time; preheating time | |||
warming up time | |||
preheating period | |||
warm up time | |||
warming up period | |||
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glow time; preheating time | |||
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warm-up time | |||
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warming-up |
预 热 时间 : 7 phrases in 3 subjects |
Automobiles | 1 |
Metallurgy | 3 |
Technology | 3 |