According to the results, the ingredients of extract, centrifugal speed per hour, illumination, temperature, substrates and seedling age could influence the NRAs.

结果表明，提取液成份、离心时速、光照、温度、底物、苗龄等都会影响硝酸还原酶活力。

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NRAs are close to the companies and government departments from which their largely civil-service staffs have been recruited.

ECONOMIST: In the shark pond