然而，由于风能和太阳能具有间歇性的特点，并且当前其他技术仍处于试验阶段，所以稳定持续的低碳电力来源急缺。
Yet since wind and solar power are intermittent and other technologies are still experimental, a constant source of low-carbon electricity will also be needed.
间歇流反应器的脱氮效果好于连续流反应器，特别当碳氮比较低时。
The denitrification in the batch reactor has higher efficiency than that in the continuous flow reactor.
利用间歇实验对不同碳源、氮源及碳氮质量比值对产氢细菌RF-9的发酵产氢行为影响进行了探讨。
The carbon-nitrogen mass ratio (mC/mN) has a significant influence on fermentative hydrogen production capacity of strain RF-9, cell growth and fermentative H2-producing ability would be impro.
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