控制或调节系统油液的压力、（）和方向，从而改变执行元件的力或力矩、速度或转速及运动方向的元件是控制元件。.

句子翻译

1. 他把一生都用在照顾穷人上.(spend...in doing)

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2. 请允许我祝贺你们比赛获胜.(allow)

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3. 当我说有些人不诚实时, 我并不是指你.(refer to)

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4. 直到他拿下眼镜我才认出他.(not...until...)

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5. What do you think of the ticket inspector's attitude?

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