electrical displacement control
electrical displacement control coil resistance test procedure
electrical displacement control coil resistance
electrical displacement
control test
对照试验
防治试验
防效试验
对照实验
调节试验
控制测试
校核试验
控制试验
控制实验
控制验证
监测
对比研究
displacement control mode
displacement control valve
displacement control angle
hydraulic displacement control
Temperature control test
short displacement control
displacement control port
manual displacement control