Caisson
01
沉箱, 防水室
large watertight chamber used for construction under water
02
藻井, 凹进面板
a decorative or structural element with recessed panels, commonly found in ceilings, adding visual interest to the space
03
弹药箱, 弹药柜
a chest to hold ammunition
04
弹药车
a two-wheeled military vehicle carrying artillery ammunition
