sand and gravel layer中文,sand and gravel layer的意思,sand and gravel layer翻译及用法
2026-03-22 07:42浏览次数 18
sand and gravel layer
砂卵石垫层
sand and gravel layer 例句
英汉例句
the infiltration protection wall of deepest of over 80 meters at xiaolangdi dam is the key project to control infiltration in the sand and gravel layer at dam base.