sand and gravel

短语词组

短语

• sand stratum and gravel bed 砂砾石层
• sand and gravel strata 砂卵石地层
• sand and gravel culture 砂田栽培
• sand and gravel drilling 砂砾石层钻探
• waterin sand and gravel 岩土中的水
• sand and gravel overlay [地质]砂砾覆盖层
• assorted sand and gravel 筛选的砂和砾石
• waste sand and gravel 废砂石
• sand and gravel size 砂石粒径
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