醚

In this paper a new concept of biaxial stretching of hollow fiber was introduced.

提出了中空纤维的"双向拉伸"这一新概念，研究了纵向拉伸、径向张力、凝固浴浓度对膜性能的影响，为设计具有合适性能的聚醚砜中空纤维膜提供参考

Effects of 2, 2', 4, 4'-tetrabrominated biphenyl ether (BDE-47) on photosynthetic characteristics of two marine microalgae were comprehensively investigated.

研究了不同浓度的2，2'，4，4'-四溴联苯醚(BDE-47)对2种海洋微藻的光合特性的影响。

The proposed method is simple, rapid and sensitive, and can meet the requirements of determination of multiple biphenyl ether herbicides simultaneously in natural waters.

本法简便、快速、准确、灵敏度高，能满足环境水样中多种二苯醚类除草剂残留分析要求。

Technically, the PPS is a full-automatic only weapon, based on simple blowback principle, and is fired from the open bolt.

从技术上说，聚苯硫醚是一种全自动的唯一武器，基于简单的反作用原则，从开放的螺栓开枪。

Objective To evaluate the effectiveness and safety of penehyclidine hydrochloride as a preoperative treatment for children bronchoscopy.

目的 评价盐酸戊乙奎醚作为儿童支气管镜检查术前用药的有效性与安全性。

Etherification of butanol with ethylene oxide by a new style solide acid catalyst is investigated.

研究了丁醇和环氧乙烷在一种新型固体酸催化剂上的醚化反应。

This paper studies the synthesis of butyl sulfide under microwave irradiation and discusses the reaction condition.

研究了二丁硫醚的微波合成及其影响因素。

The scale of the construction is 50 thousand tons per year BDO project, and the finished products are BDO, butylene oxide and gasol.

我国一直是BDO的净进口国，近几年来的进口量呈逐年上升之势，BDO在国内的消费函盖PB吨、聚氨酯、四氢呋喃、γ-丁内酯等诸多方面，另一方面，国外BDO生产和销售的发达国家近几年酯-醚共聚物消耗BDO的速度发展很快，估计未来BDO在国内的消费速度约为10％，高于国民经济约2-3百分点，这个发展速度基本符合BDO的消费实际。

On the above mentioned base, the metallized films of polyvinyl formal , polyvinyl butyral and polyethersulphone prepared by reduction were newly developed.

在系统地研究聚乙烯醇和聚丙烯腈/金属盐体系表面金属化的同时，又开发了聚乙烯醇缩甲醛、聚乙烯醇缩丁醛和聚醚砜/金属盐体系，并对这些材料表面金属化的条件和影响因素进行了详细研究。

Resin and rubber used as the solvent, to dissolve polystyrene, ABS, PMMA, polyvinyl butyral, polysulfone, polyether chloride, styrene butadiene rubber, solvent-based adhesive preparation

用作树脂和橡胶的溶剂，能溶解聚苯乙烯、ABS、聚甲基丙烯酸甲酯、聚乙烯醇缩丁醛、聚砜、氯化聚醚、丁苯橡胶等，配制溶剂型胶粘剂

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。