查询词典 acidic

The catalyzed oxidation of cyclohexanol with 30% aqueous hydrogen peroxide by mass fraction to produce adipic acid can be achieved using tungstic acid -acidic additive catalyst system in the absence of organic solvents and phase-transfer reagent.

以钨酸-酸性添加剂为催化体系，在无有机溶剂和相转移剂的情况下，催化30%过氧化氢氧化环己醇合成己二酸。

When the molar ratio of tungstic acid∶acidic organic additive∶cyclohexene∶hydrogen peroxide was 1∶1∶40∶176 (tungstic acid, 2.5 mmol) and the tungstic acid/resorcinol used as catalyst, the isolated yield of adipic acid was up to 90.9% for 8 h.

以钨酸/有机酸性添加剂为催化体系，在无有机溶剂、相转移剂的情况下，催化30%过氧化氢氧化环己烯合成己二酸。

Through the reaction between cyclamate and sodium hypochlorite under acidic media, cyclohexylamine in extracted cyclohexane was separated on VP-ODS column, 250mm × 4.6mm with methanol-water solution(65:35)as mobile phase and detected by UV monitor at 314nm.

在强酸条件下，样品中甜蜜素经次氯酸钠溶液处理后生成环已酰胺衍生物，在波长314nm处有强烈吸收，可直接用紫外检测器测定，建立柱前衍生液相色谱测定儿童食品中甜蜜素的方法。

Different methods for assessing the sensitivity of water,soil and whole ecosystem to acidic depositions are summarized.

评述水体、土壤和整个生态系统对酸沉降敏感性评价的各种方法，这些方法用系统的不同物理化学性质表征它们缓冲酸输入的能力。

There are many offerings from the plant kingdom that assist in creating a more acidic system.

植物王国贡献有许多营养物，可以协助制造一个更多酸性的系统。

Eight dominant strains that can effectively degrade acidic material in landfill leachate were selected to investigate their degradation of benzoic acid, phenol, phthalic acid, fatty acids and so on in landfill leachate.

分离筛选能够快速降解垃圾渗滤液中难降解有机酸性物质的优势菌种8株，研究了这8菌株及其混合体对苯甲酸、苯酚、邻苯二甲酸、脂肪酸等以垃圾渗滤液中常见的有机酸性物质的降解特性。

Epilepsy ; topiramate ; glial fibrillary acidic protein ; pentylenetetrazol ; hippocampus ; rat

癫； 托吡酯；胶质原纤维酸性蛋白；戊四氮；海马；大鼠

Objective To observe the expression of connexin-32 and glial fibfillary acidic protein and their mutual relationship in forebrain of pentylenetetrazol induced seizure in rats ,after pretreatment with carhenoxolone.

目的研究大鼠存脑室埋管注射片珀酸预处理后戊四氮导致癫痫发作时前脑内胶质纤维酸性蛋白和连接蛋白-32（Cx32）表达及其相互关系：方法动物分为生理盐水对照组、CBX预处理对照组、戊四氮致痫组、CBX预处理后再PTZ致痫组，应用免疫荧光组织化学双重标记显示GFAP和Cx32在前脑的表达及其相互关系。

In recent years, medical experts have found at home and abroad, resulting in easy fatigue were factors that tend to come from the partial eclipse acidic foods.

近年来，医学专家发现，在国内和国外，很容易造成疲劳的因素往往来自偏食酸性食物。

Can be calm mood, lifting nervous, inhibit the body's acidic and alkaline to stomach the increase.

可镇定心情，解除紧张不安，抑制体内的酸性，使胃中的碱性增加。

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。