坞闸操纵装置 gate-operating machinery ; gate-operating gear

内坞闸 ebb tide gate

干船坞闸门 [船] dry-dock caisson

船坞闸门 dock gate

沉箱式坞闸 caisson gate

干坞闸门 drydock gate ; dry dock gate

挡潮坞闸隔舱 tidal chamber

干船坞闸 dry-dock lock

坞式闸门室 dock-type lock chamber