Geologist Hubert has observed the typical law of petroleum production and made accurate prediction on the developing trend of petroleum output and storage with the model.

地质学家休伯特曾提出了石油生产的典型规律，并运用该模型对未来石油产储量趋势做了较为准确的预测。

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Multiplex cycle metering system of petroleum output is designed based on single chip, which includes the designs of hardware and software. Metering principle and process are formulated.

基于单片机设计了采油井石油产量的多路循环计量系统，阐述了该系统的计量原理及工艺过程，给出了计量系统的软、硬件设计。

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In recent years, the domestic petroleum demand is strong, the consumption has a large growth, but the domestic petroleum output increases a little, the contradiction of supply and demand is prominent.

近年来，国内石油需求强劲，消费大幅增长，而国内石油产量却徘徊不前，供需矛盾日益突出。

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"I think it's important for the United States to be less at the mercy of foreign countries and their decision-making and politics, and more under our own control to address these problems, " Abraham said, two days after the Organization of Petroleum Exporting Countries agreed to cut oil output by a million barrels a day.

CNN: Bush: No 'short-term fixes' to energy woes

Yes, the petroleum industry has been remarkably creative in increasing output from existing plants, but new ones are needed.

FORBES: Let the People Do It

Dealers said Wednesday's drop in New York prices was prompted by evidence that Saudi Arabia was meeting allocation targets, following a meeting of the Organisation of Petroleum Exporting Countries last weekend which pledged to boost oil output by 800, 000 barrels per day.

BBC: Oil prices recover losses