A.熱洗時(shí)間B.熱洗用液量C.抽汲參數(shù)D.洗井設(shè)備
A.5m3/hB.10m3/hC.15m3/hD.30m3/h
A.膠皮管B.低壓軟管C.軟質(zhì)D.硬質(zhì)