Aminopeptidase, a collection of enzymes which can remove amino acid from the N-terminus of peptides one by one, is very important in protein hydrolysate production and debittering.

氨肽酶是一类从多肽链的氮末端顺序逐个水解氨基酸的酶，在蛋白水解液脱苦和蛋白质的深度水解中有重要作用。

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Air stripping had been studied to remove the high concentration of ammonia-nitrogen (NH3-N) from vanadium sesquioxide (V2O3) wastewater in this project.

本课题研究了吹脱法净化三氧化二钒（V_2O_3）生产过程中产生的高浓度氨氮废水。

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CGO were hydrotreated by RN 2 catalyst to remove N and S impurities and improve the quality. The hydrotreated CGO was proposed to be mixed with VGO as FCC feedstock after testing in the pilot plant.

采用脱氮活性高的RN-2 催化剂对管输油的焦化蜡油进行加氢处理，脱除其中的氮、硫等杂质及改善烃类组成后，进行催化裂化或与直馏蜡油混合作催化裂化进料。

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U.N. involvement would remove the onus on the U.S. to negotiate on its own.

CENTERFORSECURITYPOLICY: Why China isn��t helping disarm North Korea