Because of having high efficiency, energy saving, little effect on environment and steady operation, water source heat pump and ground source heat pump are promising in Guiyang.
水源热泵和地源热泵由于具有高效节能、对环境影响小、运行稳定等特点，在贵阳地区很有发展前途。
This vehicle is of high efficiency and water saving, and the water consumption is only 30% of that of the normal flusher.
高效节水，耗水量仅为普通洒水车的30%左右，是国产清洗车中的佼佼者。
The development of permanent magnet electrical machinery with high efficiency and high power factor supply new ways for water pump saving energy.
高效、高功率因数的稀土永磁电机为水泵节能开辟了新途径。
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