In this way, the matching of the screw and barrel diameter clearance, with the gradual wear and tear of the a little bit more.

这样，螺杆与机筒的配合直径间隙，随着二者的逐渐磨损而一点点加大。

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Bearings, airframe rolling - rigid single row ball bearings in steel, cadmium plated - diameter series 0 and 2. reduced clearance category - dimensions and loads.

机体轴承。镀镉钢的刚性单列滚珠轴承。0号和2号直径系列。小游隙类。尺寸和负荷。

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