... demographic trendn.人口结构和人口变化的趋向 oil industry trend石油工业的发展趋势 Accelerating trend加快态势 ...
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定向井已成为世界石油工业的发展趋势之一。
Directional well has been one of the development trends in petroleum industry.
从近代石油工业的发展趋势看来，随着社会对能源依赖性以及需求量逐渐加大，人们对油气藏的开采要求也越来越高。
As the development trend of modern oil and gas industry, the requirement of oil and gas recovery becomes higher and higher with the increasing social dependence and demands on energy.
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