proportioning valve的用法和樣例：
例句
- Adding vibrationg signals in the direction of the variation of the control signal, overcome the friction of the proportional valve and the cylinder.
在控制信號變化的方向上疊加顫振信號，克服了比例閥和氣缸的靜態摩擦力。 - System simulation is carried out, and the simulation results show that the control method used for the deadband compensation of the proportional valve is correct and feasible.
並通過系統模擬研究，證明該控制方法用於氣動比例閥死區補償的正確性和有效性。
