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如何分辨螺丝的是多大的
更新时间: 2020-09-16 00:00:00  

螺丝是利用物体的斜面圆形旋转和摩擦力的物理学和数学原理,循序渐进地紧固器物机件的工具。螺丝是紧固件的通用说法,日常口头语。从螺丝的粗细,螺丝扣的粗细,一般分为粗口、中口、和细口,在区分的时候看准这三个要点即可快速判断螺丝大小。

关键词: 如何 分辨 螺丝

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