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【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20210416

2021-04-16View Original

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True or False: The driving mechanism of a household sewing machine is a crank-rocker mechanism, in which the pedal acts as the rocker and serves as the active component. (V) For the daily question activity in the rotating equipment section, please reply within three days. Correct answers earn rewards ranging from 5 to 15 points; those who provide detailed answers receive additional rewards. Those who get it wrong score no points. All forum members are welcome to participate actively to support the development of the forum! ! !

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