醚的

All companies in Thailand in early 2002 that a 'high-tech world, as China's first China Aerospace Group / Houston hospital / yellow rope lead the entire group radiation center Thai Plant, in full production, pyrocondensation Casing has approved UL / cUL International Security Certification, the industry took the lead at home and abroad by SGS comprehensive test: lead Pb, Cd Cd, mercury Hg, hexavalent chromium Cr, PBB PBBS, PBBs ether PBDES.

全泰公司于2002年初在著称'世界高科技、中国第一照的中国航天集团/中国火箭院/中国黄缆集团辐照中心筹建全泰二厂，已全面投产，热缩套管已通过UL/cUL国际安规认证，国内外同行业率先全面通过SGS测试：铅Pb、镉Cd、汞Hg、六价铬Cr、多溴联苯PBBS、多溴联苯醚PBDES。

In this paper, the synthesis of polyamide acid resin, with 4, 4′-diam-inodiphenyl ether and pyromellitic dianhyride as monomers and dimethylacetamide as solvent, is reported; the preparation of polyimide fiber from PAA resin by dry- spinning method is described; and the effects of various factors of operating conditions upon the mechanical properties of the fiber is discussed.

本文报导了用4，4′—二氨基二苯醚与苯均四酸酐作单体，在N，N′—二甲基乙酰胺溶剂中合成聚酰胺酸树脂，以及用该树脂经干纺法制备纤维和制备过程中各项参数对纤维力学性能的影响。

Ultra-thin freestanding polyimide films of 100 nm thickness were formed by sequential evaporation of 4,4'-diaminodiphenyl ether and pyromellitic dianhydride precursor monomers followed by a thermal treatment of 150 ℃ 1 h and 350 ℃ 2 h.

采用分层蒸镀法，在玻璃基片上依次蒸镀二氨基二苯醚和均苯四甲酸二酐两种单体，然后在空气环境中对样品进行不同温度和时间的热亚胺化处理，使二者在交界面上反应生成聚酰亚胺。

Polyamic acidsolution were synthesized from pyromellitic dianhydrideand 4,4"-diaminodiphenylusing solution polycondensation with N,N"-dimethylacetamideas a solvent.

采用均苯四甲酸酐和4，4＇-二氨基二苯醚作为单体，合成聚酰亚胺的前驱体聚酰胺酸。

Polyimide/silica (PI/SiO2) nano-hybrid films of different solid content were prepared based on pyromellitic dianhydride and 4, 4'-oxydianiline using tetraethoxysilane as the inorganic precursors.

以均苯四甲酸二酐和4，4'-二氨基二苯醚为有机单体，正硅酸乙酯为无机前驱体，制备了SiO2含量一定，PAA杂化胶液固体含量不同的PI/SiO2纳米杂化薄膜。

The improvement of PEIs in heat and solvent resistance, impact resistance, flame retardance and flow processing characteristic was reviewed.

从耐热性和耐溶剂性、抗冲击性、阻燃性、加工流动性等方面概述了聚醚酰亚胺的性能改进进展。

The insecticidal activities of the ethanol extracts and 5 kinds of extracts with petroleum ether, chloroform, ethyl acetate, n-butanol, aqueous from Rubia cordifolia L. against wolfberry aphis was investigated.

采用点滴法，测定了茜草乙醇提取物和石油醚、氯仿、乙酸乙酯、正丁醇和水5种不同极性萃取物对枸杞蚜虫的触杀活性。

Objective: To investigate the effect of Epibueropyridinium A, extracted from Scrophularia ningpoensis, in prevention of D-galactose-induced cataract in rats.

目的：探讨玄参中环烯醚萜Epibueropyridinium A对D-半乳糖性白内障形成的干预作用。

Scrophulariaceae plant to Radix Rehmanniae is an important commonly used traditional Chinese medicine replenishing, catalpol as the main component in yellow, are iridoid glycosides category.

摘要玄参科植物地黄是一种重要的常用传统补益中药，梓醇作为地黄中主要成分，属于环烯醚萜苷类。

In general, SEPs are sensitive to volatile anesthetics,but little is known about the effects of anesthesia maintenancewith sevoflurane on SEPs in children.

一般说来，挥发性麻醉药对 SEP 很敏感，但对于七氟醚麻醉维持时对儿童 SEP 的影响目前知之甚少。

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。