This paper discusses some factors affecting oil-generation threshold depth of the Tertiary basins in East China.

进一步讨论了影响我国东部第三系含油气盆地成油门限值的几种地质因素。

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Coal and natural gas are mainly used for electricity generation, whereas oil is used mostly to power transportation, yet the prices of all these energy sources are linked.

煤炭和天然气主要用于发电，而石油主要用于给运输提供能量，但所有这些能源的价格是相互关联的。

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If the petroleum geologists' view of oil generation and migration are not accepted, then present exploration methods would need extensive modification.

如果石油地质学者关于油气生成和运移的观点不被接受，那么目前的勘探方法需要大幅度改变。

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Whites are first- or second-generation newcomers, whether conservative oil men or left-wing environmentalists.

ECONOMIST: Swing states

But the reduction in oil use from the first-generation Volt is negligible.

FORBES: Dissecting Chevy Volt's Super Bowl Commercial

"This is the worst time we've ever had in the business, " says Matt Bjornson, third-generation co-owner of Bjornson Oil Company in Cavalier, N.

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