old variant of 閘|闸[zha2]; sluice; lock (on waterway)

pneumatic brake; airlock

sluice; water gate; waterlocks; floodgate; lock; dam

handbrake

electric switch; circuit breaker

navigation lock

(of a circuit breaker or switch) to trip; to jump a turnstile

brake (of a car, bicycle etc)

open sluice gate; (toll) station; boarding gate (airport etc); (fig.) gateway (access point)

turnstile

electric fusebox; switch box

(computing) gateway (Tw)

gate valve; sluice valve

Chinese mitten crab (Eriocheir sinensis); Shanghai hairy crab

(electronics) silicon-controlled rectifier (SCR); thyristor

pneumatic brake

sluice-gate; flood discharge valve

water intake; inlet sluice