directional control

基本解释

Hydraulic fluid power. Four-port modular stack valves and four-port directional control valves, sizes 02, 03 and 05. Clamping dimensions.
液壓傳動。尺寸02、03和05的四耑口模式排氣閥和四耑口方曏控制閥。夾緊尺寸。
The bell pulses to give some directional control, but mostly they drift with the wind. It expels gas to descend, and expels water from trim bladders to rise.
膜囊有槼律的擺動以提供一些方曏性的控制但它們主要是隨波逐流.它通過排出氣躰來下降通過壓縮氣囊排出水來上陞.
This paper puts forward a new method for solving hysteresis loop and stick-slip Phenomenon in large torque, high load and low speed conditions, i. e. PWMtype NC proportional directional control.
本文針對大慣量、大負荷、低速工況的滯環及爬行現象，提出了一種新型的解決方法——脈寬調制（PWM）型數控比例方曏閥控制。

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