To date, economic liberation of hydrocarbon gases from hydrates has not occurred, but hydrates contain quantities of hydrocarbons that could be of great economic significance.

迄今，从水合物中经济地采出烃类气体尚未实施，但水合物所含烃类的数量却有很大的经济意义。

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Choose dark tea products with large quantities. Because of the relatively low prices, they can greatly relieve your economic pressure.

选用生产批量大的茶品。批量越大，一般来说市面价格就低，收藏起来经济压力相对而言就要小一些。

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Those quantities of petroleum, which are anticipated to be profitably recovered from known reservoirs with existing technology and under present economic conditions from a given date forward.

以现有技术和当前的经济条件，在今后一段确定的时期内，预期可以从已知油藏里采出而有利可图的那部分石油的数量，就叫（可采）储量。

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China has acknowledged the need to limit its carbon emissions, but argued that greater responsibility falls on advanced industrialized nations like the United States, which produced large quantities of greenhouse gases for decades before China's rise as a global economic power.

VOA: standard.2009.11.26

In one model we thought of the firms setting quantities and the market determining prices, and here we have the firms setting prices and the market determining quantities, but the basic underlying economic structure of this is very, very similar.

在前一个模型我们假设公司设定产量,而市场决定价格,在本模型中我们假设公司设定价格,而市场决定产量,但基本的经济结构是非常,非常相似的

耶鲁公开课 - 博弈论课程节选

China imports vast quantities of crude oil besides using humongous quantities of coal to keep its economic engine humming.

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By producing vast quantities of it, backed by no real economic activity, it has reduced the meaning and value of each new and pre-existing ticket.

FORBES: Ben Bernanke's Quantitative Easing: The Monetary Policy Of The Adolescent

Every year China posts higher economic growth rates, generates dramatically more domestic savings and attracts vastly greater quantities of direct foreign investment.

FORBES: Bad government, good companies