短語詞組短語loam sandy soil 壤質(zhì)砂土loam paddy soil 壤水稻土medium loam soil [土壤]中壤土boulder loam soil 漂礫壤土sandy loam soil 亞砂土又稱砂壤土;沙壤土light loam soil [土壤]輕壤土fibrous loam soil 松軟壤土silty clay loam soil 粉粘壤土sand loam soil 砂壤土 返回 loam soil