查询词典 butyl

Was extracted with 95% ethanol at first,and then the ethanolic extract was separated with petroleum ether, ethyl acetate, n-Butyl alcohol and methanol in turn to get four fractions from small to large in polarity. The MTT experiment was made for active screening.

方法青天葵部位提取物的制备主要采用溶剂法，青天葵全草先用95%的乙醇提取，得到的提取物进一步用石油醚、醋酸乙酯、正丁醇、甲醇依次提取，得到极性由小到大的4个提取部位。

Oil in the redeployment of high-octane fuel components, blending the best choice programs, such as redeployment isooctane, cumene, alkyl benzene, methyl tert-butyl ether, alcohol burning Materials.

在油品中调入高辛烷值燃料的组分，选择最佳调合方案，如调入异辛烷、异丙苯、烷基苯、甲基叔丁基醚、醇类燃料等。

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 tert-butyl ether is a gasoline additive used to improve air quality by reducing emissions.

土壤/地下水被汽油、柴油及其他石油制品所污染是一个愈趋普遍且严重的问题。

The fundamentals of the degradation of Methyl tert-Butyl Ether in aqueous solution using Fenton Reagent were investigated.

本研究探讨微电化学抛光之加工参数，针对模具业常用的模具钢SKD11进行各种参数实验。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。