In this paper, the CBN grinding wheel of high efficiency, accuracy and surface quality was studied by means of low pressure abrasive water jet.
采用低压磨料水射流对高效率、高精度、高表面质量的CBN(立方氮化硼)砂轮进行了研究。
In this paper, problems of dropping load rate, efficiency and rising operation energy consumption of surface engineering system during oil field exploitation are studied.
针对油田开发过程中地面工程系统的负荷率下降，效率降低，生产运行能耗升高的问题开展了研究。
In order to enhance the machining efficiency of a large symmetrical freeform surface, this paper put forward a new concept of symmetrical machining(SM), analyzed the characteristics of SM.
为了提高大型对称自由曲面的加工效率，提出了一种新型的对称加工方法，并分析了对称加工的特点。
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