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mainspring是什么意思

mainspring

美['meɪnsprɪŋ]  英['meɪnsprɪŋ]
n.  主要原因;主要推动力;主发条
  近义词:parent,occasion,drivingforce,motiveforce,impetus,dynamo,

英英释义

Noun
  1. the most important spring in a mechanical device (especially a clock or watch); as it uncoils it drives the mechanism

例句

用作名词(n.)
  1. The mainspring of the mechanism would remain unchanged.这一机制的主要推动力依然不会改变。
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