It is important and difficult for design and calculation of concrete buoyancy in construction of formwork lining trolley with full circle section.
在全圆断面模板衬砌台车的施工应用中，混凝土浮力的设计计算是重点和难点。
It is important and difficult for design and calculation of concrete buoyancy in construction of formwork lining trolley with full circle section.
在全圆断面模板衬砌台车的施工应用中，混凝土浮力的设计计算是重点和难点。
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