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Natural Resources Research - In this study, we combined low-salinity (LS) water and steam as a novel enhanced oil recovery (EOR) method that can provide additional oil recovery up to 63% of...  相似文献   
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We present first preliminary results obtained with the European Observation Network consisting of 9 observatories in the Czech Republic, Germany and Bulgaria. We also discuss related problems such as the background of unknown variable stars and suggest a strategy for work in this area.  相似文献   
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