latchn.门闩；碰锁；弹簧锁v.上闩；缠着；明白latch enable允许闩锁latched port锁定端口latch spring锁扣,弹簧,卡齿弹簧,闭止把弹簧Latch - Up闩锁效应latch opener开针舌器latch output锁存输出latch-lock弹子门锁latched relay闩锁继电器latch voltage锁定电压latching work矿山测量