阀: established house or power g ...隙: crack; chink; crevice调整阀隙: adjustment of valve clearance阀隙调整: valve clearance adjustment阀隙流速: mean gas velocity in valve opening area阀隙当量流速: gas equivalent velocity in valve opening area阀隙通道面积: valve opening area阀系统: valve system阀位置控制器: valve positioner阀位置: evegr valve position egr; valve position阀位指针: position indicator pointer阀下的: subliminal阀位指示器: valve position indicator