豁免
2022 年 4 月 11 日Roller Compacted Concrete Dam
2022 年 4 月 11 日
A dam constructed mainly of stone, brick, or concrete blocks pointed with mortar. A dam having only a masonry facing should not be referred to as a masonry dam.
豁免
2022 年 4 月 11 日Roller Compacted Concrete Dam
2022 年 4 月 11 日
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