如果把一台机器全部拆散开来，这台机器便成为一堆如螺母、螺钉、弹簧、齿轮、凸轮、轴等简单部件—即所有机械的构成单元。
Thus, if a machine is completely dismantled, a collection of simple parts remains such as nuts, Bolts, springs, gears, cams, and shafts the Building Blocks of all machinery.
如果把一台机器全部拆散开来，这台机器便成为一堆如螺母、螺钉、弹簧、齿轮、凸轮、轴等简单部件—即所有机械的构成单元。
Thus, if a machine is completely dismantled, a collection of simple parts remains such as nuts, Bolts, springs, gears, cams, and shafts the Building Blocks of all machinery.
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