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The design, synthesis, and angiotensin Ⅱ antagonist activities of several quinazolinone and quinazoline phenoxyphenylacetic acids are described.

本文设计、合成了一系列喹唑啉酮和喹唑啉苯氧基苯乙酸类化合物，并检测了它们的血管紧张素Ⅱ受体拮抗活性。

New method of racemization of L-Phenylalanine in aqueous solutions at ambient conditions was found and its industrialization process was successfully carried into execution.

常压下L形苯丙氨酸在水溶液中的消旋新方法首次发现并在工业上成功研究，建立了相应的L-苯丙氨酸水溶液消旋动力学模型。

Six calix[4]recorcinarenes are synthesized by the reaction of resorcin as substrates with six aromatic aldehydes, respectively.

以间苯二酚为反应底物，分别与六种芳香醛合成了相应的杯[4]间苯二酚芳烃，并通过红外光谱和氢核磁共振谱对这些化合物进行了表征。

The sulfonation and oxidation processes for manufacture of resorcinol are compared in environment benefit and some suggestions on the development of resorcinol are proposed.

介绍了间苯二酚的主要用途和国内外生产现状，并对主要的生产方法磺化法和氧化法从环境效应上进行了比较，对今后我国间苯二酚的生产发展提出了建

The main chain and side chain have different effects on the surface properties.

研究了多烷基苯磺酸钠的结构，特别是侧链碳原子数的增加，对其表面活性的影响，并与其它烷基苯磺酸钠进行了比较。

Four new chiral sulfonamide alcohol s were synthesized from camphor and L-phenylalanine and their application to the enantioselective addition of diethylzinc to benzaldehyde was described.

由天然樟脑和-苯丙氨酸合成了4个新的手性磺酰胺醇，并对其在二乙基锌对苯甲醛的不对称加成中的催化性能进行了研究。

Four new chiral sulfonamide alcohols were synthesized from camphor and L-phenylalanine and their application to the enantioselective addition of diethylzinc to benzaldehyde was described.

由天然樟脑和-苯丙氨酸合成了4个新的手性磺酰胺醇，并对其在二乙基锌对苯甲醛的不对称加成中的催化性能进行了研究。

The failure reason of the superheater was its serious distortion,and a measure to solve the problem was put forward.

分析总结了乙苯过热器的失效原因，并对扩容改造后的乙苯过热器组支座进行了受力分析，认为筒体的严重变形可影响过热器的正常运行。

The acute toxicity of three kinds of typical chemicals to alga、cladoceza and swordtail fishwere studied, and safety assessment was also made.

采用水体中3个营养级别的水生生物测试卤代酚类、硝基苯类、烷基苯类典型有毒有害化学品对水生生物的急性毒性，同时对上述物质对水生生物的安全性进行初步评估，并预测了上述物质对水生生物的环境安全浓度。

In order to lower the Δn value and obtain broad mesophase range, new negative dielectrics anisotropy liquid crystal compounds 4a and 4b were designed by replacement a phenyl ring with a cyclohexyl ring in the common tolane liquid crystals.

为降低液晶分子的双折射率并获得宽液晶相区，用环己基替代传统二苯乙炔液晶分子中的一个苯环，得到一类结构新颖的含乙炔桥键的负介电各向异性液晶分子4a， 4b。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。