Pump is the drainage and back into the groove of reasonable design, is a gear in the work under the minimum torque force, so the bearing load is small, wear small, pump with high efficiency.

输送皂角泵内有设计合理的泄油和回油槽，是齿轮在工作中承受的扭矩力最小，因此轴承负荷小，磨损小，泵效率高。

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Application of argon arc local strengthen can increase hardness and high-temperature wear resistance of the ring groove.

采用氩弧局部强化可提高环槽的硬度和高温耐磨性。

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Laser quenched groove surface has high wear resistance, and its wear resistance is higher than that of groove by using high frequency quenching and chromium plating method.

激光淬火的环槽表面具有良好的耐磨性，比原高频淬火和镀铬工艺处理的耐磨性有较大提高。

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Scientists argue the more someone like Clooney appears--be it on television, on film or in tabloid spreads--the more his image begins to wear a neurochemical groove on our brain.

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