Although water pollution caused by pulp and paper industry has been decreased in recent years mainly due to the breakthrough progress of black liquor recovery technology of non-wood pulping.
指出近年非木材制浆黑液治理已取得突破性进展，成绩显著，中国造纸工业对水环境的污染已经得到较大程度的缓解。
The technique combined with profile modification, solves polymer breakthrough and has a good effect that recovery rate is increased by 15.28% at the stage of experiment.
该技术与调剖方法相结合解决了聚合物突进问题，试验达到阶段采收率增加15.28%的好效果。
The breakthrough of gas usually occur during low permeability reservoir development, that lead to recovery efficiency fall.
低渗透油藏注气开发极容易发生气窜，导致采收率降低。
The breakthrough of gas usually occur during low permeability reservoir development, that lead to recovery efficiency fall.
低渗透油藏注气开发极容易发生气窜，导致采收率降低。
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