Transforming tar sands into crude is costly as well as dirty: the process only becomes profitable with oil prices in the $60-85 range or higher.

把焦油沙转换成原油不仅费用昂贵而且对环境造成污染。 当油价在60-85美元范围波动或允许再高一点,这种提炼过程才有利可图。

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The labor range that female worker contraindication undertakes includes : ( 1 ) course of study of mine well dirty ;

女职工禁忌从事的劳动范围包括： （ 1 ）矿山井下作业； （ 2 ）森林业伐木、归楞及流放作业；

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Furthermore, the company is involved in such a range of energy technologies (including dirty coal plants, nuclear generators, natural-gas turbines and wind) that it does not need carbon regulations in the way, say, a narrowly focused fuel-cell or solar-cell maker might.

ECONOMIST: The greening of General Electric

Their comeback album, Angels With Dirty Faces, helped Keisha Buchanan, Mutya Buena and Donaghy's replacement Heidi Range win the best dance act Brit award last month.

BBC: Kylie's US success rewarded