since wdm channels share optically active devices such as edfas, network management of one channel may affect the power and noise features of the other channels.

由于在wdm系统中，各个信道共用光有源器件（如edfa），对某一信道的网络操作有可能影响其它信道的功率和噪声特性。

along with the rapid development of chirality science, the preparation of optically active chiral lactones is becoming increasingly important for research in chemistry and biochemistry.

随着手性科学的快速发展，获取手性内酯的单一对映体具有重要的研究和应用价值。

optically active cyanohydrins are important intermediates lor the synthesis of agricultural chemicals.

活性氰醇是合成大量医药、农药产品的重要中间体。

however, if optically active reagents are being used it would be important to avoid the ph range above 6, as at the higher ph range interconversion of the free compound of formula i occurs.

使用光学活性试剂对避免ph值超过6很重要，因为ph过高时分子式一的化合物可以自由转变。

the industrial synthesis of certain optically active intermediates, including chiral amino acids, carboxylic acids, alcohols, amines and epoxides is reviewed.

重点叙述了某些光学活性中间体的工业合成技术，包括手性氨基酸、手性羧酸、手性醇、手性胺和手性环氧化物。

novel optically active triazole derivative, process for producing the same, antifungal agent and method for using the same.

新的光学活性三唑衍生物，其制备方法，抗真菌剂和其应用方法。

optically active compounds, which possess important significance for the development of life science, material science, information science etc.

对生命科学，材料科学，信息科学等高新技术发展有重要意义的光活性化合物只能通过手性技术来获取。

as important choral intermediates, optically active alcohols were widely used in the production of pesticide and liquid crystals for their vital useful value, widely interesting have been aroused.

光学活性醇被广泛用作杀虫剂及液晶材料生产的重要手性中间体，因其具有重要的应用价值，已引起人们广泛兴趣。

along with tile rapid development of chirality science, the preparation of optically active chiral lactones is becoming increasingly important for research in chemistry and biochemistry.

随着手性科学的快速发展，获取手性内酯的单一对映体具有重要的研究和应用价值。

the asymmetric reduction of ethyl 4-chloro-3-oxobutanoate (cobe) to optically active ethyl 4-chloro-3-hydroxybutanoate (chbe) catalyzed by yeast cells in aqueous phase was investigated.

利用活性酵母细胞催化4氯乙酰乙酸乙酯 （cobe）的不对称还原可以直接合成具有光学活性的4氯3 羟基丁酸乙酯（chbe） 。

racemization is found with optically active substrates.

发现旋光基质有外消旋作用。

several enzymatic methods, including enzyme catalyzed enantioselective synthesis and kinetic resolution, for the preparation of optically active cyanohydrins are reviewed.

综述了酶催化立体选择性合成及动力学折分制备旋光性氰醇的几种方法。

racemization is found with optically active substrate substrates .

发现旋光基质有外消旋作用。

chiral synthesis can be achieved by taking advantage of natural or synthetic optically active compounds.

在手性合成中利用了天然或合成的光学活性化合物。

optically active 3,4-diazaphospholane ligands and their application in asymmetric hydroformylation and allylic alkylation reactions.

旋光活性3，4-二甲基磷酸配体及其在不对称羟基化和烯丙基烃化反应中的应用。

alternatively, the compound of the invention may be prepared using optically active reactants.

另外，本发明的化合物可使用光学活性反应物来制备。

this article introduces the application of hydrolases, oxidoreductases and their enzyme sources in the synthesis of optically active drugs.

本文介绍水解酶、氧化还原酶及其酶源在光学活性药物合成中的应用。

in fact, lipases often display high enantioselectivity, which makes these catalysts especially attractive for the interest for optically active compounds.

尤其脂肪酶在有机合成中经常表现出极高的立体选择性，因此它们经常被用于制备光学活性化合物。

the prospect of industrial preparation of the optically active ehb by microbial whole-cells was also discussed.

最后对生物催化制备光学活性ehb的工业化前景进行了展望。

optically active propargyl alcohols are important and versatile building blocks for the synthesis of a wide range of pharmaceuticals and natural products.

光学活性炔丙醇是合成许多药物、天然产物的重要前体物质。

optically active bis-α-amino acids are unnatural amino acid synthons and can be applied to the synthesis of drugs, pesticides and peptides.

光学活性的双氨基酸作为一类非天然的氨基酸合成子，在医药、农药和肽类合成中有着重要的作用。

this article introduces the application of hydrolases, oxidoreductases and their enzyme sources in the synthesis of optically active drugs. 29 references are presented.

本文介绍水解酶、氧化还原酶及其酶源在光学活性药物合成中的应用。

optically active propargylic alcohols are very useful and important precursors to many chiral organic compounds including natural products, pharmaceutical compounds and macromolecules.

手性丙炔醇是非常重要的合成中间体，广泛应用于天然产物、药物以及复杂大分子化合物等的合成。

this article narrates the transformation of carbonyl group in optically active epoxy ketones under different reagents and enumerates some synthetic applications of this kind of transformation.

本文讲述了有机合成中光学活性的环氧酮化合物中酮羰基在不同试剂下的转化，并列举了一些相关的合成应用。

the main route for obtaining optically active alcohols is resolution of racemic alcohols catalyzed by enzyme in organic solvents by the esterification reaction.

有机相中应用酯化反应，酶法催化拆分消旋醇是获得光学活性醇的重要途径。

the mechanisms and recent advances of industrial production of optically active compounds have been reviewed.

本文介绍了光学活性物质的几种工业规模的生产方法及最新的进展。

the formation of enantiopure optically active biomolecules is an important chapter in the history of evolution.

光学活性生物分子的形成是世界进化历史中一个重要过程。

the synthetic methods for such chiral c3 synthons as optically active glycerol and derivatives, which are widely used in asymmetric synthesis, were reviewed with 24 references.

叙述了光学活性甘油醇及其衍生物等手性c3合成子的合成方法，以及这些手性化合物在不对称有机合成中的应用，参考文献24篇。