异构的

The effects of reactive route and temperature on forming control of four isomers were examined in the processes of synthesizing the thymine dimer.

考察了环丁烷嘧啶二聚体合成中反应途径和温度对四种异构体生成的影响和控制。

Objective To screen the mimic antigen epitopes of the triose phosphate isomerase of Schistosoma japonicum Chinese strain and investigate their immunogenicity. Methods The random phage peptide library PH.D.

目的 筛选日本血吸虫中国大陆株磷酸丙糖异构酶分子的模拟抗原表位，研究其免疫学特性。

Any of three poisonous colorless isomeric phenols; derived from coal or wood tar; used as a disinfectant.

三种有毒无色的同质异构苯酚中任意一种，来自煤或木焦油，用作消毒剂。

The results can lay a foundation for application in industry of xylose isomerase.

研究结果为嗜热木糖异构酶的进一步工业应用奠定了基础。

The effects of reaction temperature,reaction time,ultrasound frequency,agitating velocity and HCl amount on the yield and purity of abietic acid were investigated by orthogonal experiment.

通过正交优化实验考察了反应温度、反应时间、超声波频率、搅拌转速、盐酸用量对枞酸单离收率和纯度的影响，确定最佳异构化反应条件为：超声频率47.2 kHz，反应温度55℃，盐酸用量0.06 mL盐酸。

The channel for producing COOH-+H2,contributed from both aldehydic hydrogen abstraction and nucleophilic addition,is the most favorable channel.

通过计算提出亲核加成过程的反应通道，主要产物生成H2和生成COOH-/HCOO-/OCHO-异构体。

The pure isomers 3-(1-hydroxyethyl)-8-vinyldeuteroporphyrin Ⅸ and 3-vinyl-8-(1-hydroxyethyl)deuteroporphyrin Ⅸ were obtained from protoporphyrin Ⅸ dimethyl ester.Starting from these two acetylating compounds,eight new porphyrin derivatives were synthesized through an alkyloxy fission reaction.

以原卟啉Ⅸ二甲酯为起始原料，合成并分离得到3-(1-羟乙基)-8-乙烯基次卟啉Ⅸ（Ⅱ1）和3-乙烯基-8-(1-羟乙基)次卟啉Ⅸ（Ⅱ2）二个异构体，两者分别经酰化后与醇进行烷氧裂解反应合成了8个全新的卟啉衍生物。

Allene is an isomer of methyl acetylene.

丙二烯是甲基乙炔的一种异构体。

It is similar in structure to αandβ-Asarone that are genetoxic to rat hepatocytes. Carpacin''s isomer, myristicin is not genetoxic to rat hepatocytes and can induce glutathion S-transferase activity that is reported to have effect in rat hepatocytes.

其类似物α与β-Asarone对鼠肝细胞具有基因毒性及其异构物myristicin对鼠肝细胞并无基因毒性，且可诱发出glutathion S-transferase等解毒酵素的活性。

The first step in the pathway of bilin biosynthesis is the conversion of heme to biliverdin IX by the heme oxygenase encoded by ho1, then PCB:ferredoxin oxidoreductase encoded by pcyA catalyze BVD to 3Z-PCB.

在血红素氧化酶的作用下，血红素Ⅸ被氧化而共轭环断裂形成胆绿素IV，胆绿素IV被藻蓝胆素合成酶还原和异构化形成藻蓝胆素PCB。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。