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- Later on, it was found that many kinds of water-soluble polymer had the ability of disproportionate permeability reduction (abbr. DPR), meanwhile, it was also discovered that some metallic ion crosslinked polymer could get better DPR. 随着研究的深入，人们发现许多水溶性高分子溶液具有这种不等比例降低油水相渗透率（DPR，Disproportionate Permeability Reduction）的功能，同时，人们还发现，利用一些金属离子交联高分子溶液，可以获得更好的DPR效果。
- One of the mechanisms for disproportionate permeability reduction (DPR) is that a new flow path will be produced with the residual oil when oil flows through oil_bearing porous medium treated by the gel. 凝胶处理使油 /水相渗透率产生不均衡减少是由于油在通过凝胶时部分残余油占据的孔隙形成了新的流动通道 ;
- Buchsteiner, H. Stress-induced permeability reduction in fissured reservoirs. SPE 26513, 1994 张琰，崔迎春．砂砾性低渗透气层压力敏感性的实验研究．石油钻采工艺，1999，21(6).
- Keywords Ultra-high molecular weight, Acrylamide polymerization, Difunctional peroxide initiator, Polymer Flooding,,,,mechanism, Permeability reduction prediction.; 超高分子量;丙烯酰胺聚合;引发剂合成;聚合物驱油机理;渗透率下降系数;
- The reduction of unemployment should be paramount. 降低失业率应是头等大事。
- The forthcoming talk hold out the hope of real arms reduction. 即将举行的会谈给实现真正的裁军带来了希望。
- Queue forme at the ticket office when the news of the fare reduction get out. 票价下调的消息一传出，售票处前就排起了队。
- The first is the channel theory of permeability. 第一个是透过度的通道理论。
- A reduction in pace, force, or intensity; a slowdown. 减慢，放松速度、力量或强度减弱; 放慢
- What reduction will you make on this article? 这个东西你要减价多少?
- Cancel water vapour permeability coefficient. 取消了水蒸气渗透系数。
- Air resistance See Air permeability. 空气阻力参阅透气度。
- There is no room for any reduction in price. 价格毫无再减的余地了。
- The talks resulted in reducing the number of missiles/missile reduction. 谈判结果削减了导弹数量。
- Rocks have better water permeability than sand. 岩石的透水性不如沙土。
- Negotiating a reduction in nuclear arms is a long and arduous undertaking. 有关削减核武器的谈判是一项漫长而艰苦的工作
- Reduction in the purchasing value of money. 贬值钱的购买价值的降低
- A reduction in value, amount, or degree. 减低价值、程度或数量的减少
- A reduction of the entered value of an asset. 降低，划减资产帐面价值的降低
- We can not do more than a 2% reduction. 我们只能降价百分之二，不能再多了。
