求翻译：这类实验基本都只反映最终采收率提高，并没有对表面活性剂驱下驱替压力的变化做很多解释，本文采用非稳态法驱替实验，对表面活性剂驱油过程前后的压力变化和驱油效果进行分析，直观的反映出表面活性剂能够降低驱替压力和提高驱油效率。是什么意思？

Such experiments reflect basic only improve the ultimate recovery, and no surfactant flooding, flooding do a lot of explanation for the change of pressure, using non-steady state method displacement experiments, the pressure before and after surfactant flooding process change and flooding effects, i

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Such experiments are basically only reflects the ultimate oil recovery rate, and the lack of surfactant flooding by displacement pressure changes do a lot of explanation, this article uses a non-steady-state displacement experiment by, surfactant oil pressure change and displacement efficiency of an

This kind of experiment basic all only reflected the final recovery ratio enhances, has not driven the displacement pressure to the surface active agent the change to do very explained, this article uses the non-stable state law displacement experiment, drives around the oil process to the surface a