名词藻井; （水下作业用的）沉箱; 沉雷箱
1. 沉箱：1845 年,法国人 Triger 提出最早的减压病之病例报告,当时法国政府为了在 Chalonnes 市建造一座横跨罗亚尔河(Loire river)的大桥,他负责设计和制造一个可装载工人的潜水沉箱(caisson),用来协助将石块做成的桥墩立确地沉放於河底烂泥中,
2. 沉箱;挖孔桩：caged man 笼屋居民 | caisson 沉箱;挖孔桩 | caisson cap 沉箱盖;沉箱帽
3. 藻井：cage of reinforcement 钢筋骨架 | caisson 藻井 | caisson ceiling 澡井顶棚
4. 弹药车：BUS 中巴﹔ | Caisson 彈藥車﹔ | Tank 戰車/坦克車﹔
1. caisson的近义词
1. Above it is a gold painted caisson, or a sunken panel inside the ceiling.
noun
1. large watertight chamber used for construction under water
Synonym: pneumatic caisson cofferdam
2. a chest to hold ammunition
Synonym: ammunition chest
3. a two-wheeled military vehicle carrying artillery ammunition
4. an ornamental sunken panel in a ceiling or dome