closed center valve 中间位置封闭的阀 ; 闭中心阀 ; 闭中央阀
closed center position 中位关闭位置
Closed-Center 中位关闭
closed center system 中位关闭系统
closed center pilot valve 中位关闭先导阀
closed center hydraulic system 中位关闭液压系统
closed center directional stem 中位关闭方向阀芯
closed center solenoid valve 中位关闭电磁阀
closed center pilot control valve 中位关闭先导控制阀
应用推荐