允许#机械零件#尺寸和几何参数的变动量就称为“公差”。 机械零部件在几何参数方面的互换性体现为#公差#标准。而公差标准又是#机械制造业#中的基础标准，它为机器的标准化、系列化、通用化提供了理论依据，从而缩短了机器设计时间，促进新产品的高速发展.更多机械知识敬请关注@华能金日科技
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