From the view of whole large system, it was difficult to solve optimization problems for light hydrocarbon recovery system because of complex technics flow and constrained conditions.

轻烃回收系统庞大，工艺流程复杂，约束条件很多，从整个大系统的角度去求解优化问题存在很大困难。

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Then discuss the advanced technology of vortex tube's application in the pressure-regulating system of natural gas and light hydrocarbon condensate recovery of natural gas industry.

同时结合实际应用领域，探讨涡流管技术在天然气输配调压系统以及天然气工业轻烃回收中的应用。

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