预制空心板坡脚基础在赵口引黄干渠弯道护砌中的应用
예제공심판파각기출재조구인황간거만도호체중적응용
APPLICATIO OF Precast Hollow Vconcrete Form Base at Slope Foot in Porotection Lining at Bend Site in Zhaokou Yellow River Diver Channel
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