低磨损的活塞结构，容量大而低耗气量。
Low wear of the piston structure, large capacity and low air consumption.
直流无刷电机是一种具有高效率、低磨损、低噪声的新型直流电机机种。
The DC motor without coal brushes is in a new style, with higher work rate, less wear and tear and lower noise.
其他方法的例子也被公开，还公开了能显示出低磨损特性的植入体表面的特征。
Other examples of method are also disclosed, along with characteristics of implant surfaces that can exhibit low wear properties.
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