The wear tests with ring on block wear test machine and corrosion tests were carried out.

用环块磨损试验机进行了磨损试验 ，并进行了腐蚀试验。

The friction-wear test machine is used to study friction and wear about rod-having pump system.

该摩擦磨损试验台是针对有杆采油系统进行摩擦磨损试验研究而研制的设备。

The friction - wear test machine is used to study friction and wear about rod - having pump system.

该摩擦磨损试验台是针对有杆采油系统进行摩擦磨损试验研究而研制的设备.

The wear test was carried on a nozzle which was made from carbides and ceramics on high pressure abrasive water-jet machine.

本文采用硬质合金和陶瓷材料制成喷嘴．在高压水设备上进行了磨损实验研究。