How to define and estimate water resources (WR) remains a problem appealing to hydraulic professionals in China.
水资源量的概念及其计算一直是国内外水利界所关注的问题。
Sincerely hope that the "WR" can help your career take off a hand!
真诚希望“WR”能为您的事业腾飞助上一臂之力！
This paper gives a comprehensive description of the WR-21 research and development history, engine performance as well as the design and maintenance features of its main components.
本文综述了该机的研制历程，发动机的性能，各主要部件的设计和维护特点。
This paper gives a comprehensive description of the WR-21 research and development history, engine performance as well as the design and maintenance features of its main components.
本文综述了该机的研制历程，发动机的性能，各主要部件的设计和维护特点。
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