In the economic point of view, the maintenance methods not only satisfy the minimum cost but also satisfy the minimum safe index.
从经济的观点要求维护方法的费用最小，同时还应满足最小的安全指标。
Pervaporation, as one of high efficient and economic membrane separation methods, is capable of separating azeotropic and near-boiling point mixtures.
渗透汽化分离是一种高效、节能的分离技术，特别适用于近沸及恒沸混合物的分离。
Steam injection parameters are optimized at late stage of huff and puff in heavy oil reservoirs by using economic balance point, daily revenue and dynamic analysis methods.
利用经济平衡点、日收益及动态分析方法，进行了稠油油藏蒸汽吞吐后期的注汽参数确定。
Steam injection parameters are optimized at late stage of huff and puff in heavy oil reservoirs by using economic balance point, daily revenue and dynamic analysis methods.
利用经济平衡点、日收益及动态分析方法，进行了稠油油藏蒸汽吞吐后期的注汽参数确定。
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