本文较详细地介绍了倒扣器的结构、动作过程、使用方法、注意事项和维护保养方法。
In this paper, the construction, functional principle, operation, matters needing attention, services and maintenance methods are presented in detail.
介绍了水-乙二醇液压液的组成、特点和使用注意事项，阐述了水-乙二醇液压液的维护与保养方法。
This paper introduces the composition, characteristic and use notice of water-glycol hydraulic fluid, and expounds the its methods of maintenance and administration.
介绍了硬管内窥镜的正确使用方法及注意事项，并且对其使用维护及保养提出了几点建议。
This paper introduces the correctly usage method and precaution of hard-pipe endoscope and puts forward several suggestions about its usage maintenance and nursing.
介绍了电子天平的使用规则、注意事项以及维护和保养方面的知识。
In brief introduce the practical regulations; cautions as well as maintenance of Electronic Balance.
介绍了电子天平的使用规则、注意事项以及维护和保养方面的知识。
In brief introduce the practical regulations; cautions as well as maintenance of Electronic Balance.
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