Experimental results show that machining metal fibre by using self propelled turning tools is an effective way.

试验结果表明：用自旋转车刀加工金属纤维是一种行之有效的切削加工方法。

youdao

A fuzzy expert system on the fault forecasting for a self propelled gun is developed using an object oriented approach.

采用面向对象方法，开发了一个自行火炮故障预测模糊专家系统。

youdao

This paper presents the model test results of a self propelled barge with twin skeg equipped with schilling rudder maneuvering in deep water.

给出了配置西林舵的双尾机动驳的深水船模操纵性试验结果。

youdao

There are more than 1.5 million of these self-propelled rolling dwellings in the United States.

VOA: standard.2010.03.01

He tested the free-diving self-propelled submersible - one of only two in existence at the time - on increasingly deep dives off the California coast.

VOA: standard.2010.06.21

Never in the history of the self-propelled vehicle have we had such product variety.

FORBES: Falling in love

The self-propelled artillery system was called Crusader, and the armed scout helicopter was called Comanche.

FORBES: How The Army Missed Its Chance To Modernize

Nomadics has already devised a waterborne offshoot of Fido called Seapup, a self-propelled minisub.

FORBES: A Nose For Bombs