醚

Adsorption kinetics of ethanethiol and thiophene on 13X molecular sieves loaded with Ag+ was investigated in static state system.

在成品油中的硫主要是硫醇、硫醚、二硫化物和唾吩等有机硫化物。

Methhods:1:The chemical components of Chinese herbal medicines extracted with petroleum ether,chloroform, ethyl acetate,ethenol and water respectively were analyzed and compared.2.The specimens were analyzed with ultraviolet-visible absorption spectrophotometry.

(1)按中药多分子体系的脂溶性差异，分为石油醚、氯仿、乙酸乙脂、乙醇和水的溶出性成分集合，然后进行&对药&与非&对药&的对比分析；(2)用紫外-可见光光度计测定吸收光谱曲线。

The results showed that solubility of nitrobenzenamine and etherate increased with temperature increasing.

实验结果表明硝基苯胺和醚化物在二甲苯和甲苯中的溶解度均随温度的升高而增加。

Solubility of nitrobenzenamine in ternary system was higher than that in binary system,but the solubility of etherate did not change.

与二元体系相比，硝基苯胺在三元体系的溶解度增加，但醚化物的溶解度未发生变化。

Solubility of nitrobenzenamine in xylene was higher than that in toluene,but solubility of etherate was nearly the same in the two solvents.

硝基苯胺在二甲苯中的溶解度要大于甲苯中的溶解度，而醚化物在两种溶剂中的溶解度相当。

Solubilities of 4,5-dichloro-2-nitrobenzenamine and etherate were experimentally determined.

测定了4，5-二氯-2-硝基苯胺和醚化物在二甲苯和甲苯中的溶解度。

Jade ; packing material ; high elastic etherate ; electrostaticly woolimplanted

玉器；包装材料；高回弹组合醚；静电植绒

High elastic etherate is applied to foam on the spot in normal temperature and normal pressure,so as to form the foam whose inner surface is the same as that of the jade craftwork and whose foaming ratio is high.The profile is cutted by laser and its surface is electrostaticly woolimplanted.

采用高回弹组合醚在常温常压下现场发泡，成型出与玉器工艺品外形吻合、发泡倍率较高的泡沫体，用激光刀剖切并对剖切面及成型轮廓面进行静电植绒，做出了外形美观、减震效果优异的高档内包装。

Keywords 4;5-Dichloro-2-nitrobenzenamine;Etherate;Toluene;Xylene;Solubility

4； 5-二氯-2-硝基苯胺；醚化物；溶解度

Cationic etherifying agent is an important agent to etherify natural polymers such as starch.

阳离子醚化剂是淀粉等天然高分子进行阳离子改性的重要单体。

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。