Some examples show that integrated construction of ground with underground can decline the cost of ground construction and enhance the economic benefit of oil field development.
对多个地面与地下建设一体化开发实例的分析表明，地面与地下一体化开发可以有效地降低地面建设成本，提高油田开发的经济效益。
Therefore, development and utilization of C5 series fine chemical products will reduce the production cost of ethylene, improve the economic profit of enterprise and increase its competitiveness.
为此，对C5 系列的精细化工产品的开发利用，将降低乙烯生产成本，提高企业的经济效益，增强企业的竞争力。
The development investment and operation cost of polymer flooding and ASP(alkali, surfactant and polymer)flooding are compared with the economic benefit of water flooding.
对聚合物驱、三元复合驱的开发成本和单位操作成本与水驱的经济效益进行了对比。
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