醚

With polyoxyethylene nonyl phenol ethers (OP-10) as emulsifier and dodecyl benzene sulfonic acid as catalyst, hydroxy organosilicon microemulsion was prepared through octamethylcyclotetrasiloxane (D4) open-ring polymerization under certain conditions.

以壬基酚聚氧乙烯醚(OR-10)作乳化剂，十二烷基苯磺酸为催化剂，通过八甲基环四硅氧烷(D4)开环聚合，在一定条件下合成了端在基聚二甲基硅氧烷微乳液。

The recent progresses in the study on the fluorescence of rare earth complexes and application for the determination of the rare earth elements and organic compounds, as fluorescent probes for bioactive materials analysis and as detection means in separation technology were reviewed in detail. In chapter two, the absorption spectra of the 4f electron transitions of the complexes of the neodymium, praseodymium, holmium and erbium with fleroxacin in the presence of CPC have been studies by normal and derivative spectrophotometry.

本文以稀土元素配位化学为基础，以导数吸收光谱技术和荧光光谱技术为研究手段，利用新一代喹诺酮类抗菌药物，抗凝血类杀鼠药物的化学结构特点和大环化合物冠醚与金属离子突出的配位能力，以分析应用为目标，系统研究了这些化合物同稀土元素形成的配合物的光吸收和荧光特性，通过对体系实验条件的优化，使体系的稳定性、选择性和灵敏度得到显著改善。

With the combination of heat pipe technology and catalytic reactor,a novel-style ophidian loop heat pipe chemical reactor was established,by which an industrial sidetrack experiment with methyl tert-butyl ether synthesis was carried out.

将热管技术与催化反应器结合，构建了蛇形回路热管反应器。利用该反应器，进行了轻烃醚化工业侧线试验，考察了进料温度、液相体积空速、冷却水流量、进料浓度对反应结果的影响；测定了催化床层的轴向温度分布。

Compounds 4a- 41 were synthesized by the reaction of 3 with different oxime s.

3与肟反应合成了含哒嗪酮的苄基肟醚类化合物4a～4l。

SPRI-WM-005 is a new oxime ether compound, which has E and Z isomers.

氯苯肟唑（SPRI-WM-005）是含顺、反异构体的肟醚结构化合物。

Aware of the enviroment where the cooling water pump of automatic vehicle engine is used and the demand for the use of parts, glass fiber reinforced PPS was ehoosed to make the cooling water pump's paddle wheel oi an automatic vehicle and its water inlet coupling plate.

针对车辆发动机冷却水泵的应用环境及对部件的使用要求，通过理论计算和性能比较，选用增韧增强聚苯硫醚试制了某车辆发动机冷却水泵的叶轮及进水接盘两个部件。

In this paper,the synthetic method of 2,4,4′trichloro2′aminodiphenyl ether from paradichlorobenzene was described.

由对二氯苯通过硝化、缩合、还原等反应合成 2 ，4，4′三氯 2′氨基二苯醚，总收率 75 %。

Previous investigations have shown that halothane preservescardiac parasympathetic activity more than sevoflurane.

过去的研究显示氟烷比七氟醚更多保护心脏的副交感活性。

The herbicidal activities of four solvent extracts from Xanthium sibiricum Patrin were tested by method of seed germination for Sorghum vulgare Pers.

4种作物种子为供试材料，用种子萌发法测定了苍耳全株的石油醚、乙酸乙酯、丙酮和苯4种溶剂提取物的除草活性。

Effects of isoflurane, pentobarbital, and urethane on apoptosis and apoptotic signal transduction in rat kidney

异氟醚，苯巴比妥和乌拉坦对大鼠肾脏的凋亡和凋亡性信号转导的影响

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。