This paper gives the new calculation formula of steering vertical force and steering resistance moment, on the basis of analysis of the steering feature and forces on mine articulated vehicles.

在对矿井铰接式车辆转向特性及受力分析的基础上，给出了转向正压力和转向阻力矩的新的计算公式。

youdao

Based on the "Security Rules for Coal Mine", the ventilation resistance and main ventilator behavior in Xing-long Mine is measured.

前言：根据《煤矿安全规程》规定，对兴隆煤矿进行了通风阻力测定和主通风机装置性能测试。

youdao

The paper introduces the working principle, constitution and application of a new type liquid variable resistance starter of high power motor used in coal mine.

介绍了一种新型矿山大功率电机液体变阻启动器的工作原理、构成及应用情况。

youdao