A fuel cell is a new energy conversion device.
燃料电池是一种新型的能量转换装置。
It was a sort of do with mechanical energy translate hydraulic energy 'energy conversion device.
它是一种把机械能转变为液压能的能量转换装置。
Shell brings together not only by the pump impeller liquid releases, but it is also an energy conversion device.
泵壳不仅汇集由叶轮甩出的液体，同时又是一个能量转换装置。
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