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ni neng kao ji ji ?( zhi si )
Pages: 18
Year: Issue:  10
Journal: Farm Machinery

Keyword:  推力轴承柱塞式向心轴承喷油嘴偶件出油阀常用油油封磨损程度初步知识机械制图;
Abstract: <正>五级驾驶员1.在机车上如何检查柱塞副、出油阀副和喷油嘴偶件的磨损程度?2.怎样进行柱塞式喷油泵的正确拆装?3.何谓气缸存气间隙?气缸存气间隙大、小对发动机工作有何影响?影响存气间隙的因素有哪些?怎样在车上进行检查?4.什么叫向心轴承、推力轴承、向心推力轴承?5.了解滚动轴承代号的含义。6.拖拉机常用油封有哪两大类?它们的使用特点怎样?了解几种主要油封的规格。
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