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.
还详细考虑了堆芯燃料球和石墨球以及反射层石墨中杂质对反应性的影响。
The effects of impurities in the fuel and the graphite element in the core and those in the reflector graphite on the reactivity of the reactor were considered in detail.
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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