论述了放电离子化检测器在高纯气体杂质成分分析中的应用。

The paper describes the application of gas chromatography with discharge ionization detector which analyzes the content of impurities in high purity gases.

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论述了城市空气污染物(即阴极气体杂质)对质子交换膜燃料电池(PEMFC)性能的影响。

This paper reviews the influence of air contaminants, i. e., impurities in air stream of cathode, on the performance of proton exchange membrane of fuel cells (PEMFC).

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然而，尽管这种'纯'气体方式的化学处理方案在上世纪90年代已经问世，但化石燃料电厂排放出的废气通常杂质很多。

Yet while this sort of chemical recipe was already shown in the 90s to work with a pure gas, the sort of emissions that come from a fossil fuel power station are typically full of impurities.

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