... spherical roller 球面滚子 spherical seating 球面座 sphericity 球状 ...
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There are also single-direction and double-direction thrust ball bearings with spherical supporting surfaces and correspondingly shaped seating washers (Figure 1.49).
也有单方向和双向推力球轴承球形表面和带有相应的支持形座位垫圈。
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