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【单选题】
欲使加工设备、仪器保持一定精度的要求就必须作到( )。
A.
加大震动,保持良好的间隙配合
B.
安全操作
C.
创造好的润滑条件,提高磨损
D.
减小震动,保持良好的间隙配合;整齐-清洁-润滑-安全;创造好的润滑条件,降低磨损
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