常用短語

sandy gravel dam砂礫石壩

sandy gravel site砂礫石場地

tight sandy gravel致密砂礫巖

sandy gravel layer砂卵石層

sandy gravel soils砂礫石土

sandy gravel strata砂卵石層

cement-sandy gravel水泥砂礫石

sandy gravel-hosted砂礫巖容礦

natural sandy gravel天然砂礫土