Mechanic seals are widely used in fluid machines for their rotary shafts.
机械密封是流体机械旋转轴密封的主要类型，使用量大面广。
The analogical law of fluid machines and principle of electronics are applied to explain the principle of frequency conversion.
应用流体机械相似定律及电工学原理，阐明变频调速原理。
First this paper research on using variable speed fluid couplings in speed regulation control system of dual pumps or fans machines running in parallel mode.
本文首先对调速型液力偶合器应用于泵或风机双机并联运行的调速控制系统进行研究。
Sealing and lubricating fluid film between port plate and cylinder block of axial piston machines has complex shapes.
本文对轴向柱塞泵或马达缸体与配流盘之间的稳态油膜流动做了数值计算。
Clean with washing machines, and lay out anti-static fluid wax for every year or half a year.
每半年或一年，用清洗机对地面进行全面清洗，待干后在地面上涂防静电蜡水，再用抛光机进行干抛光。
Clean with washing machines, and lay out anti-static fluid wax for every year or half a year.
每半年或一年，用清洗机对地面进行全面清洗，待干后在地面上涂防静电蜡水，再用抛光机进行干抛光。
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