This paper introduces the sense, aim and main contents of such maintenance and guarantee, and points out some existing problems which should be solved urgently.
文中介绍了维修保障的意义、目的和主要内容，指出维修保障中存在及亟待解决的问题。
Several troubles of nc machine tool are introduced and analyzed and puts forward the main points for daily maintenance.
对几例数控机床的故障进行了分析并提出日常维护保养的意见。
The main points of the gardens construction and maintenance are outlined, and on this basis, the suggestion that combination of the two will create successful garden works.
文章分别概述了园林施工及养护的要点，并在此基础上提出两者同设计的有机结合，创作出成功的园林作品。
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