醚的

Three open chain crown ether s and triglycolyl isopropylidene hydrazide complexes of rare earth nitrate were synthesized for the first time with isoproylidene hydrazide as the terminal group and through IR, 1HNMR, MS, characterized their structures have been characterized.

首次合成了以丙酮酰腙为端基的3种双酰腙型开链冠醚及三甘双酰丙酮腙稀土硝酸盐配合物，并通过元素分析，IR，1HNMR，MS对分子结构进行了表征

For a comparative study, polyethers based on hydroquinone and 4,4'-biphenol were also prepared and characterized.

为了性质比较，本研究亦合成了由hydroquinone和4，4'-bisphenol所衍生的聚醚并测定其性质。

The functionality of the polyether polyol is determined by the number of active hydroxyl groups per molecule.

功能聚醚多元醇，是由一些积极的羟基，每个团体分子。

Seco-iridoids and fragrant constituents,such as linalool,benzyl alcohol and their esters are major princi-ples of Jasminum sambac ,which has been found to possess pharmacological effects such as sedation,hypnogenesis and anti-bacterial activities.

茉莉主要含有裂环环烯醚萜和挥发性香味成分如芳樟醇、苯甲醇及其酯类等，具有广泛的药理活性如镇静、催眠、抗菌等。

In addition,the chemical reactivity、 resin mechanics properties and the influence of polymer ether imide toughening 5406 resin were discussed in the thesi...

本文还对5406树脂体系的化学反应性、树脂浇注体力学性能以及聚醚酰亚胺增韧改性5406双马树脂进行了研究。

Objective: To study the Effects of remifentanyl on induction characteristics and MAC of desflurane during endotracheal intubation.

目的：研究瑞芬太尼对地氟醚麻醉诱导和气管插管MAC的影响。

The yearly demand of isopropyl etherin China is about 6000 ton and it mainly depends on importation.

目前，国内每年的异丙醚需求量在6000吨左右，主要依靠进口。

The crystallization morphology and isothermal crystallization process were studied by means of polarized microscope and DLI for poly block copolymers.

采用偏光显微镜和光学解偏结晶速率仪研究了嵌段聚醚酯共聚物的结晶形态和等温结晶过程。

Rats ( n = 15) were anesthetized with isoflurane (1.2%)and laminectomy was performed to record single unit activity.

使用异氟醚(1.2%)麻醉大鼠( n = 15)，行椎板切除以记录单个单元的活动。

This thesis studied the photocuring of vinyl ether /maleate systems. It consists of four parts.

本论文对一系列不同组分的乙烯基醚/马来酸酯光固化体系进行了研究。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。