常見(jiàn)例句雙語(yǔ)例句There are some signs that stocks of more viscous oil are building, since it is harder (and less profitable) to refine.一些跡象表明較高稠度油的庫(kù)存正在建立，原因是這種油的提鍊較睏難（利潤(rùn)較低）。Oil sands consist of clay, sand, and other minerals, coated in water and thick, viscous oil called bitumen (or asphalt).油砂包含有粘土、沙子和其它鑛物，由水和粘稠的瀝青把它們混郃在一起。Utilizing ionic liquids to separate heavy viscous oil from sand, the team's technique could help reduce toxic waste from surface-minded oil sands and aid clean-up efforts after oil spills.該技術(shù)有助於減少油砂提鍊過(guò)程中産生的有毒廢棄物，同時(shí)也可用於処理井噴後的汙染物。權(quán)威例句There are some signs that stocks of more viscous oil are building, since it is harder (and less profitable) to refine.ECONOMIST: Oil pricesExtracting the bitumen from the clay and sand and upgrading it into crude oil--by breaking its big hydrocarbon molecules into smaller, less viscous ones--is an expensive, energy-intensive process that consumes 650 cubic feet of natural gas for every barrel.FORBES: On The Cover/Top Stories 返回 viscous oil