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维修农村机械时,若能巧妙利用黄油的沾附和润滑作用,某些装配困难即可迎刃而解。①在更换新轮毂内油封后,装复轮毂常会发生困
Maintenance of rural machinery, if clever use of butter adhesion and lubrication, some assembly difficulties can be solved. ① In the replacement of the new oil seal within the wheel, the wheel will often be installed complex trapped