As the unceasingly deepgoing of exploration and development in old areas, it has the significant meaning to strengthen comprehensive development and utilization of old area.
随着老区勘探开发的不断深入，加强老区的综合开发和利用具有重要意义。
Due to more than 20 years of flooding development of the old oil area, the underground circumstance and the distribution of remaining oil saturation have become very complicated.
对于注水开发20多年的老油区，地下情况和剩余油分布已经变得十分复杂。
Due to more than 20 years of flooding development of the old oil area, the underground circumstance and the distribution of remaining oil saturation have become very complicated.
对于注水开发20多年的老油区，地下情况和剩余油分布已经变得十分复杂。
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