However, most of these commercial building are using positive displacement hot water supply equipments, and most of these equipments use electricity as their heat sourse.
然而这些商用建筑中目前普遍使用的基本上都是容积式的热水供应设备，许多是以电做为热源的。
Through experiments, oil displacement efficiencies of hot-water flooding and steam flooding have been analyzed and compared with conventional water flooding.
通过实验分析了热水驱、蒸汽驱对驱油效率的影响，并与常规水驱进行对比。
The result of laboratory experiments showed that the chemicals MCA improved the displacement efficiency of hot water and the sweep efficiency of steam and hot water.
化学体系中室内实验结果表明，化学体系中MCA能提高热水的驱替效率以及蒸汽和热水的波及效率。
The result of laboratory experiments showed that the chemicals MCA improved the displacement efficiency of hot water and the sweep efficiency of steam and hot water.
化学体系中室内实验结果表明，化学体系中MCA能提高热水的驱替效率以及蒸汽和热水的波及效率。
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