醚

CMC is a kind of anionic water-soluble polymers derived from the main raw material of purified cotton linter adopted by the procedure of alkalized and etherized, by washing, drying by raking, drying and fracturing.

羧甲基纤维素钠是以精制棉为主要原料，以乙醇为媒介，经碱化、醚化、洗涤、耙干、烘干、粉碎等工序精致而成，产品纯度可达99.5%以上。

The compound of the invention is produced by drying 5Kg of malaytea scurfpea fruit seeds, and cold soaing and extracting for four times by 70% industrial alcohol, decompressing and concentrating lixivium to obtain alcohol extract, mixing by adding a right amount of water and extracting by using Sherwood oil and ethyl acetate.

本发明化合物是干燥补骨脂种子5Kg，用70％工业乙醇冷浸提取四次，浸出液减压浓缩得乙醇提取物，加适量水混溶，依次用石油醚、乙酸乙酯萃取。

WE can inhibit the abnormal increase of NO, lysozyme and cytokines IL-6 in acute inflammatory tissue fluid.

但工蜂胎的醚提物对于炎症介质以及胆固醇和VitC含量的影响不大。

In this paper, the 48 hours behavioral changes of Daphnia magna exposure to three typical pesticides were studied.

研究结果表明，在不同浓度百菌清、除草醚和溴氰菊酯的作用下，大型蚤的运动行为强度会发生剧烈变化，并呈现明显的剂量-效应关系。

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。

This thesis studied the photocuring of vinyl ether /maleate systems.

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。

The influences of the reaction temperature,re- action time and mass rat...

研究了醚化反应的温度和时间及正溴丁烷(n-C_4H_9Br)与二乙二醇单甲醚的摩尔比对DGBME收率的影响，用气相色谱法分析了产物含量，并用FT-IR和~1H NMR表征了产物结构。

The sulfide was in the form of thiophene, mercaptan and thioether.

油样中的含硫化合物以噻吩类、硫醇和硫醚为主。

The analytical method for sodium methyl mercaptide was established based on the reaction in quantity between methyl mercaptan and iodine at the base condition.

采用甲硫醇与碘在碱性条件下定量反应生成双硫醚的反应原理，建立了甲硫醇钠的定量分析方法。

It is found that their thermal conversion pathway of mercaptan, sulfides and disulfides can change after the addition of few methanol.

研究发现，少量甲醇添加到反应体系中可以使硫醇、硫醚、二硫化物热转化路径发生变化。

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。