沉井刃脚
- 网络cutting edge of open caisson; caisson cutting edge
沉井刃脚沉井刃脚
cutting edge of open caisson
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caisson cutting edge
桥梁英语... ... 沉井基础 open caisson foundation 沉井刃脚 caisson cutting edge 气压沉箱基础 pneumatic caisson foundation ...