查询词典 sulfur ether

The bulk and solution photopolymerization of vinyl butyl ether were studied using diph-enyl-4-thiophenoxyphenyl sulfonium salt as photoinitiator.

以二苯基-4-苯硫基代苯基硫鎓盐为光引发剂，研究了乙烯基正丁醚的本体和溶液光聚合。

The leaves of Balsam pear were disposed with different organic solutions, which were ether, acetone and ethanol,after that, analyse of proteins by supersensitive silver stain SDS-PAGE method.

作者中文名：陈宏；王振英；彭永康摘要：不同有机溶剂处理苦瓜叶片，用超敏感银染SDS-PAGE电泳进行蛋白质分析。

But our immortal destiny is to escape, once we have swallowed our swimmy catch, up again into the bright ether, bursting out from the surface of Old Ocean into real light. Then one realizes one's eternal nature.

但是我们不朽的命运却是逃走，一旦蚕咽了我们的粘腻的掠物后，我们便从这古老的海洋冲出，重回到光辉的以太里，重回到真正的光明里，那时我们便了解我们有个永久的天性。

Brahma, engineer of the universe, takes birth atop a lotus sprouting from the body of Visnu. Seeing darkness in all directions--not knowing his purpose or identity--the sound tapa vibrates in the ether.

梵天，宇宙的工程师，从毗瑟奴身体上的莲花顶上诞生，看见了到处一片漆黑——并不知道自己的目的和身份——塔帕歌在苍天中振动着。

The effects of feeding way of phosphorus pentoxide, ratio of C8H174OH to P2O5, reaction temperature and time on the synthesized isooctanol polyethenoxy ether phosphate were investigated. Its optimum synthesis technology conditions were as follows: feeding at batches while stirring tempestuously at 45℃, the ratio of nC8H17(EO4OH:n(P2O5)=2:1, esterifying at 70℃ for 4h, and add given volume of water at 70℃ for hydrolysing 2h.

研究五氧化磷的投料方式、反应物的用量比、反应温度和反应时间等因素对合成的异辛醇聚氧乙烯醚C8H17(EO4OH磷酸酯性能的影响，得到优化的异辛醇聚氧乙烯醚磷酸酯的合成工艺条件：在强烈搅拌下，分批投入P2O5，加料时的温度不超过45℃，nC8：H17(EO4OH：n(P2O5)=2：1，酯化温度为70℃，酯化时间为4h，在温度70℃时加入定量的水再水解2h。

Objective Widespread used as gasoline oxygenate additives, methyl t-butyl ether were added to gasoline to enhance the octane number, reduce carbon monoxide in exhausts and to substitute for tetraethyl lead as an anti-knock agent.starting in the winter of 1992, MTBEup to 15wt.

研究目的甲基叔丁基醚(Methyl Tert-Butyl Ether，MTBE)是一种新型的汽油添加剂，主要用来增加汽油辛烷值，提高汽油燃烧效率，减少汽车尾气中一氧化碳等有害物质的排放，并代替四乙基铅用作汽油防爆剂。

In the process of laboratory study, oxycodone was prepared by oxidating thebaine at 6,14-position under oxydol, hydrodeoxidizing 7,8-position double bond and 14-position ether under palladium catalyst. Furthermore, N-methyl of oxycodone was isolated byα-chloro-ethyl chloroformate under anhydrous condition and protection of 14-position hydroxyl to obtain noroxycodone, which was further converted into methylnaltrexone by N-alkylation in presence of cyclopropyl bromomethane, then by isolating 3-position methyl of methylnaltrexone under boron tribromide, becoming hydrochloride to prepare target compound, natrexone hydrochloride.

实验室工艺方面，本文首先用双氧水氧化蒂巴因的6-位和14-位、在钯炭催化下加氢还原7-8位双键和14-位醚合成羟考酮，然后提出并优化了在无水和14-位保护的情况下，用氯甲酸-α-氯乙酯脱去羟考酮的N-位甲基合成去甲羟考酮，再用环丙甲基溴将去甲羟考酮的N-位烷基化合成甲基纳曲酮，最后采用三溴化硼脱去甲基纳曲酮的3-位甲基和成盐酸盐合成盐酸纳曲酮。

Thermolysis of DM-DMI bis-carbamate was carried out in 3wt % solution of diphenyl ether at 254℃ for 5-6 hours, and the yield of DM-MDI is 61％ after purification.

而在第二步骤的热裂解反应中，在3wt ％二苯醚溶液中，控制反应温度在254℃，经反应5-6小时即得到DM-MDI，经浓缩及纯化后主产物之产率为61％。

Pleasingly, the residual thiophenol could be readily removed without silyl ether hydrolysis via passage of the product through a pad of basic alumina.

怡人、残硫可随时取消含硅基醚通过经水解产物透过垫基本氧化铝。

We will build the roads and bridge s, the electric grids and digital lines that feed our commerce and bind us tog ether.

我们将恢复尊重科学的传统，利用高新技术的超常潜力提高医疗保健质量并降低成本。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。