Galvanic cell type hydrogen sensors and fuel cells belong to the former, and hydrogen pump, steam electrolyzer and membrane reactors to the latter.
原电池型的氢传感器和燃料电池属于前者，氢泵、蒸汽电解器和膜反应器属于后者。
The results, which obtained by using radial diffuser, show that due to the high loss through the diffuser, the efficiency of the liquid hydrogen pump is lower.
采用径向导叶的液氢泵的试验结果表明，导叶损失大，导致液氢泵效率低。
This paper introduced the advantage and characteristic of L-series roots blower, which could substitute the liquid ring pump in the process of hydrogen transportation.
本文介绍了L系列罗茨鼓风机在氢气输送过程中替代液环泵的优势与特点。
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