contact pick-off[自] 接触传感器
pick-off diode截止二极管;选截二极管
pick-off gear可互换齿轮;可调换齿轮;选速齿轮
pressure pick-off[自] 压力传感器
Pick-off unite产品检测装置
pick-off f牵制跑垒员的传球
optical pick-off光传感器
pick sth off瞄准
pick-off annihilation撞击湮没
V(动词) to aim at and shoot one by one 逐个瞄准射击