Partial Stroke Test (PST)的中文翻译? their friction may increase in the course of time, especially the initial break-off force or torque of linear and rotary actuators respectively as a result of corrosion or increasing encrustation of the plug stem. 由于对塞杆的腐蚀及日趋严重的结垢,摩擦力尤其是线性执行器的启动力或者旋转执行器的启动力矩会随着使用时间的延长而增加。查看更多