sand and gravel

短语词组

短語

• sand stratum and gravel bed 砂礫石層
• sand and gravel strata 砂卵石地層
• sand and gravel culture 砂田栽培
• sand and gravel drilling 砂礫石層鑽探
• waterin sand and gravel 巖土中的水
• sand and gravel overlay [地質]砂礫覆蓋層
• assorted sand and gravel 篩選的砂和礫石
• waste sand and gravel 廢砂石
• sand and gravel size 砂石粒逕
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