one-piece set
... 一次采全高 full-seam mining 一构件支护 one-piece set 一梁二柱棚子 three-piece set ...
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圆形截面钢筋混凝土构件是工程结构中常用的构件之一，如港口工程中的混凝土灌注桩、建筑物的承载柱、桥梁桥墩以及基坑的支护排桩等。
Members with circular concrete sections have been used widely for piles in harbor engineering, columns of the building, bridge piers and support piles in deep foundation ditch engineering, etc.
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