sand gravel

短语词组

短語

• sand and gravel 砂礫石;砂卵石層
• sand -gravel fan 砂礫巖扇躰
• sand and gravel strata 砂卵石地層
• replacement sand -gravel 換填砂礫
• 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
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