锁,水闸,枪机,煞车,拘留所,性病,头发,少量,上锁,制住,加锁,锁上,撞锁,绺

steering wheel lock

lock stitch sewing machine

chain stitch and lock stitch

swing lock clasp

cellar door lock

letter lock for pipe switch

mechanical lock

pneumatic lock (compressed-air lock)