The major nitrogen transformation pathways in constructed wetlands include nitrification and denitrification of microbe, plant uptake and adsorption by substrate.

人工湿地氮转化途径主要包括微生物的硝化反硝化作用、植物的吸收和湿地基质的吸附等。

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The polarimetry was is used to control the fermentation process and the end point of substrate (RSA) transformation. This method is more effective than colorimetry.

通过对氢化可的松发酵过程中用比色法控制发酵过程和终点改为旋光法控制，使测定过程的控制更加合理有效。

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