The steel lining is widely used in hydropower projects, but, more or less, void existed at the joint surface between steel lining and concrete.
钢衬在水电站压力管道中应用十分普遍。混凝土浇筑完毕后，钢衬与混凝土接触面或多或少会出现脱空。
The steel lining is widely used in hydropower projects, but, more or less, void existed at the joint surface between steel lining and concrete.
钢衬在水电站压力管道中应用十分普遍。混凝土浇筑完毕后，钢衬与混凝土接触面或多或少会出现脱空。
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