During the rehabilitation construction of 1985, the asphalt facing was covered by the sand gravel with a stone pitching surface.
1985年对该坝采用砂砾石料覆盖和沥青混凝土面板加固等综合措施进行了处理。
During the rehabilitation construction of 1985, the asphalt facing was covered by the sand gravel with a stone pitching surface.
1985年对该坝采用砂砾石料覆盖和沥青混凝土面板加固等综合措施进行了处理。
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