S 開頭單詞
sand source control area [經(jīng)濟(jì)學(xué)]沙源治理區(qū)
sand soil layer [土木建築工程]砂土層
sand soil 砂質(zhì)土
sand slime separator [經(jīng)濟(jì)學(xué)]砂泥分離器
sand sheet 蓆狀砂；薄砂層；沙蓆；[地理] 小沙原
sand sediment trap cleaning [土木建築工程]窨井清掏
sand sediment trap [經(jīng)濟(jì)學(xué)]沉沙槽
sand riverbed [水利工程]沙質(zhì)河牀
sand quarry 採砂場(chǎng)
sand pump bucket dredger [交通運(yùn)輸工程]自敭鏈鬭挖泥船
sand pit 砂坑；採沙坑
sand pebble soil [土木建築工程]砂卵石土
sand papering machine [經(jīng)濟(jì)學(xué)]砂紙加工機(jī)
sand paper [木] 砂紙