- box footing
- 沉箱: caisson; float case; sinkbox ...
- 基础结构: infrastructure
- 沉箱基础: caission foundation; caisson foundation; foundation on caisson; laying foundation
- 管状沉箱基础: cylinder cai on foundation; cylinder caisson foundation
- 气压沉箱基础: compressed-air foundation; pneumatic caisson foundation
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