A gap or void in the coating of a pipe or in paint on a metal surface.
在管子覆盖层或金属表面涂漆层上有漏涂点或裂缝。
The electrospun fiber textile is characterized by high void content and great specific surface area, and the diameters of fibers are in nanometer scopes.
电纺纤维织物的空隙率高、比表面积大、构架织物的直径处于纳米级别。
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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