查询词典 ether

To synthesize aryl pyrimidines by taking benzene, methyl benzene ,acetic ether,1,2-dichloroethane as solvent,the yield and purity of the product are high by taking methyl benzene as solvent.

分别选用苯、甲苯、乙酸乙酯、二氯乙烷作为溶剂合成桂皮酰哌啶，结果表明甲苯作为溶剂时产品纯度高，收率高，可用于大规模生产。

Objective: To establish a for determination of methyl tert-butyl ether in drinking water by purge-trap GC-MS.

目的：建立适用于水中甲基叔丁基醚的吹扫捕集GC-MS测定方法。

Objective: To establish a GC/MS analytical method for methyl tert-butyl ether in the workplace air.

目的：建立工作场所空气中甲基叔丁基醚测定方法。

The methyl tertiary-butyl ether is a kind of gasoline additive, have been used since the beginning of the eighties of the 20th century, still widely used in many countries now.

甲基叔丁基醚是一种20世纪80年代初开始广泛使用的汽油添加剂，现仍在许多国家得到广泛的应用。

The method is suitable for analyzing the methyl tert-butyl ether in drinking water.

此方法能够用于分析水中甲基叔丁基醚。

This product is a granular carbon/organoclay media for removal of methyl tertiary butyl ether.

本产品是颗粒碳或有机膨润土介质，用于清除甲基叔丁基醚。

Objective To study the kidney toxicity and toxic mechanism induced by methyl tertiary-butyl ether lead free gasoline.

目的 了解甲基叔丁基醚无铅汽油对肾脏的毒性及毒作用机制。

Methyl vinyl ether is a useful intermediate and monomer.

乙烯基甲醚是一种重要的有机合成中间体及高聚物的单体。

Codeine has the same structure as morphine, but the phenol group is masked as a methyl ether.

可待因也有和吗啡相同的结构，但是酚基被甲基醚屏蔽了，结果。

Harmful substance such as formaldehyde and methyl ether.

有害物质的低廉劣质染料织品应绝对不能考虑。

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。