乙醚

Storage tanks developed by the introduction of new special plastic material, containing acetone, ethyl ether and other chloro-organic chemicals Fang operation, there are anti-corrosion and dissolution.

储水箱采用新研制的特种塑料材质，对含有丙酮、乙醚氯钫等有机化学物质的作业，有耐腐蚀而溶解作用。

And easy to dissolve in the water,at the same times,It does not dissolve in the chloroform, the ethyl alcohol, the ether and other organic solvents.

它易溶于水，不溶于氯仿、乙醇、乙醚等有机溶剂。

Various fractions of tannins with different polarities and relatively narrow molecular weight distribution were obtained by extractions using ether and ethyl acetate sequently.

通过乙醚和乙酸乙酯萃取可得到极性不同的组分。分析表明，各级分的分子量分布范围不同，且相对较窄。

Naphthol ethyl ether was sythesized with the ethanol and β-naphthol as materials and aluminium sulfate as catalyst.

介绍了以乙醇和β-萘酚为原料，在硫酸铝Al2(SO43.18H2O催化下合成β-萘乙醚的方法，讨论了反应时间，催化剂用量以及反应物摩尔比对合成的影响，确定了最佳反应条件。

Results The killing effects of different extracts of Euphorbia kansui Liou Mass and Dryopteris Crossirhizomz had big differences.

结果 2 %甘遂和贯众草药的乙醚、乙醇提取液对致倦库蚊幼虫的杀伤分别高达 95 0 %± 4 4 %，90 0 %± 3 5 %，83 0 %± 0 6 %与 75 0 %± 2 0 %。

As a result,the ray tracheid inner wall has sawtooth thickening obviously.The pit of cross field is windows and pine shape.The ratio of the tracheid length to width is about 50.Airdry density is about 598kg/m3.The shrinkage of difference is about 1.8;1%NaOH extraction and cell...

结果表明：紫杉木材射线管胞内壁锯齿状加厚明显，交叉场纹孔多为窗格状，偶尔为松型；管胞的长宽比平均值约为50，气干密度平均为598kg／m3，差异干缩约为1.8；1％NaOH抽出物、乙醚抽出物、纤维素含量较落叶松高，木素含量比落叶松低，其它化学指标与落叶松相近。

Based on the technology of automatic curve fitted, the peak shape parameters and peak shape law in ether fraction of P.

在优化条件下，虎杖乙醚组分的HPLC分析可在60 min内完成，当中的常量成分都能够得到较好的分离度。

HPMC can not dissolve in grain alcohol, aether and acetone without water in them and can dissolve into clear or slight feculent colloidal solution.

HPMC在无水乙醇、乙醚、丙酮中几乎不溶，在冷水中溶解成澄清或微浑浊的胶体溶液。

0 G of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

一百十九点零克的环戊基溴或溴环戊烷和十九点四克的镁在乙醚或四氢呋喃中产生反应，形成一个环戊格氏试剂。

AIM To study the effect of sodium copper hematoporphyrin IX monoethyl ether on hematopoiesis.

目的探讨血卟啉单乙醚铜钠盐对60Co辐射小鼠骨髓造血系统的影响，以期寻找再生障碍性贫血治疗药物。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。