根据“变压吸附解吸附”压力交变原理，研制了分子筛氧气浓缩器样机。

The prototype of a molecular sieve oxygen concentrator system (MSOCS) was developed, on the principle of PAS.

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当前有关COD的研究主要集中在污水处理、环境监测和评价方面，对其吸附解吸研究尚属空白。

At present, the research about COD is concentrated on sewage disposal, environmental monitoring and assessment mainly, but nobody has researched on adsorption-desorption of COD.

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实验结果表明，NKA-9型大孔吸附树脂对白藜芦醇的吸附、解吸性能较好。

The experiment results show that a resin type of NKA-9 is better in adsorption and desorption to resveratrol.

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