This article further analyzes the total energy composition and the method to raise the energy use efficiency for water supply on the basis of research of predecessors.
该文在前人的研究基础上进一步分析了供水所需总能量的组成和提高供水能量利用方法。
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。
Scenic lake to make more use of the larger lakes or water-based King, lake hills, fields and farm cottage, urban or rural scenery, and other features for the King and the composition of the liner.
湖泊风景多以较大的湖泊或水面为主景,湖岸的山丘、原野和农家村舍、田园风光或城市风貌等为衬景而组成。
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