bitumen
bitumen 英 [ˈbɪtʃəmən] 美 [bəˈtumən]
n. 沥青
名词复数:bitumens
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- n. 沥青
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1. Getting at the deeper oil requires treating the bitumen underground so it can be pumped out through an oil well.
要想开采到深层的石油，还要对付地下的地沥青，这样才能通过油井将石油抽上来。
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2. Just last month someone used a bulldozer and plowed a two-foot-deep gash in the desert, unearthing the brick and bitumen remains of a stairway possibly leading to another cemetery.
就在上个月，还有人用推土机，在沙漠中犁出一个两英尺深的大裂缝，挖掘到一段楼梯的砖块和沥青碎片，这可能通向另一片墓地。
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3. The most common technique in new projects involves injecting the bitumen with steam underground.
在新的工程中最常用的技术，则是往地下的沥青中注入蒸汽。
- bitumen (n.) mid-15c., from Latin bitumen "asphalt, mineral pitch," probably, via Oscan or Umbrian, from Celtic *betu- "birch, birch resin" (compare Gaulish betulla "birch," used by Pliny for the tree supposedly the source of bitumen). Related: Bituminate.
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