英语语法分析

The ion nitriding of the diesel engine crankshafts was tested.

采用脉冲式离子渗氮炉对柴油机曲轴进行了辉光离子渗氮处理。

The paper introduces the working principle in making crankshafts by using advanced tr upsetting.

本文介绍了先进的TR镦锻法制造曲轴毛坯的工作原理。

Crankshafts of as cast pearlite ductile iron have been produced stably by double random inoculation.

通过二次随流孕育，稳定生产铸态珠光体球铁曲轴的生产工艺。