基于所提出的虚拟滚动体的思想，阐述了超声波减摩的实质。

In this paper, the essence of the ultrasonic vibration on the frictional properties is presented, based on the concept of virtual rollers excited by ultrasonics.

youdao

常温下含锡量在9%时，合金具有优良的耐磨减摩的综合性能。

The aluminum alloys with 9% Sn content has the best wear-friction properties at room temperature.

youdao

这是一种最齐全的高性能、高技术产品：发动机的减摩处理、变速器、动力转向、变速箱、链接和油。

Discover a complete range of top-performing, high-tech products: antifriction treatments for the engine, transmission, power steering, gearbox, joints, and oils.

youdao