手动阀；手控阀

mitral valve───n.[解剖]左房室瓣（二尖瓣）；[解剖]僧帽瓣

mitral valves───n.[解剖]左房室瓣（二尖瓣）；[解剖]僧帽瓣

ball valve───[机]球阀，弹子阀

tonal value───色调；影像明晰度

vacuum valve───真空阀

capital value───[经]资本价值

manual labour───体力劳动；手工劳动

Verify the manual valve and outlet valve on the hot oil line of 100ra101 are open.───确认100ra101的热油管线上的手动进口阀和出口阀打开。

INSPECT MANUAL VALVE LEVER FOR WORN PLASTIC INSULATION OR STEEL BURR WORN THROUGH PLASTIC.───检查手动阀杆磨破了塑料绝缘或硬毛刺磨破了塑料绝缘.

Suggest having local readout at manual valve for each drum so that operator can level in drum when draining.───建议每台罐在手动阀门处有就地读数，以便操作员在排凝时知道罐的液位。

Valves with this option have a hand wheel mounted on top of the actuator for manual valve operation.───这种备选件的阀门在执行器顶部安装一个手轮用于手动阀门操作。