Typically it involves drilling wells to pump steam into the ground to melt the bitumen and make it easier to suck up to the surface.
典型的工艺是先钻井，然后通过井眼将蒸汽泵入地下，油砂中的沥青被蒸汽熔化，这样便容易被抽吸至地面。
Analyses the relationship between operating conditions and energy saving in pressurisation by a continuously running make up water pump.
分析了两种模式补给水泵连续补水定压的工作状况与能耗之间的关系。
WTO will make pump industry seek for reform, pursue for survival, and finally grow up.
WTO将促使泵行业寻求变革，寻求生存，并获得成长。
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