main exhaut是什么意思

用法例句

To pneumatic vane motor with the same property both positive turn and opposite one,it is very difficult to determine the process parameters of air chambers at the principal exit area because of the particularity of the principal exit type.

运用质量守恒定律,完成了工作过程中叶片所构腔室在主排气区任意位置时的气体工艺参数计算,为该类马达的动态特性分析奠定了基础。

Design of computer control and measurement system for coal mining main drainage pump;

煤矿井下主排水泵计算机监控系统设计

In accordance with the characteristics of main drainage pump for coal mine and the present development of control and measurement technology, the paper introduces a kind of modularized computer monitoring system for main drainage pump underground coal mine.

　针对煤矿主排水泵的特点和当前测控技术发展,本文介绍了一种基于模块化的煤矿井下主排水系统计算机监控系统。

Research progress on recovery of automatic micturition in postoperative uterine cervix cancer patients;

宫颈癌术后恢复自主排尿的研究进展