However, if exposed to heated air, the phase change from liquid to gas is more intense, and produces an efficiency of 70 percent.
然而如果该过程中加入热空气，相变过程就会加剧，达到70%的效率。
Presently, induction motor is mostly used for frequency-change air conditioner compressor, but it has such drawbacks as low efficiency and complicated controller.
目前变频空调压缩机大多采用感应电动机驱动，而感应电动机效率低，变频控制器比较复杂。
It adopts German technology of air-hydraulic boosting driving system, freely change between two stroke or three stroke for high efficiency and energy saving.
采用德国技术设计的气液增力主驱动系统，可进行二行程与三行程自由切换，节能高效。
It adopts German technology of air-hydraulic boosting driving system, freely change between two stroke or three stroke for high efficiency and energy saving.
采用德国技术设计的气液增力主驱动系统，可进行二行程与三行程自由切换，节能高效。
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