查询词典 anhydride

The substrate functionality is usually grafted acid anhydride at up to 25 wt%.

基体官能团通常是接枝酸酐，酸酐比率高达25%。

Acid and anhydride functionalized PP, PE and EVA forms are available.

酸或者酸酐功能化 PP 、 PE 和 EVA 等形式都是有的。

First of all, analysis is particular carried out about market environment which is include present situation of market at home and abroad, project investment environment, main product market in acid anhydride industry.

用PEST方法，从政治、经济、社会、技术角度进行了投资项目的宏观环境分析；用波特的五种竞争力模型进行了投资项目行业结构分析；用SWOT分析方法确定了投资项目面临的优势、劣势、机会、威胁。

A new method of rapid measurement on the content of sulfuric acid anhydride in coal ash is described with its test principle, experimental material, procedures and comparative test data of the new and conventional methods.

介绍一种快速，准确地测定煤灰中三氧化硫含量的方法，阐述了该方法的试验原理、实验材料和操作步骤，并提供了新旧方法对比试验的数据。

An acid that is a partial anhydride of three molecules of phosphoric acid; known chiefly in the form of its salts and esters.

三个磷酸分子形成的部分脱水物，已知主要以其盐和酯的形式存在。

ResultsThe purity of compound was 98%. IR showed Naproxin was conjugated to Phaeophorbide in acid anhydride.

结果HPLC测定其纯度为98％，红外光谱显示脱镁叶绿酸和萘普生形成了酸酐交联。

Polyaspartic acid was synthesized using maleic anhydride and ammonium salt as raw materials and characterized by IR and TG-DTA.

以马来酸酐和铵盐为原料合成聚天冬氨酸，对聚天冬氨酸进行了红外光谱和差热-热重分析表征，并对其阻碳酸钙垢及分散氧化铁的性能做了较系统的研究。

Catalytic synthesis of Aspirin over pretreated sodium acetate using salicylic acid and acetic anhydride as starting materials.

以水杨酸和乙酸酐为原料、无水乙酸钠为催化剂合成阿司匹林。

The reaction was carried out under the ratio of ramie to acetic anhydride and acetic acid of 1∶2.5∶4 at 60℃for 1 h.

通过FT-IR、SEM、纯水通量等手段考察了不同种类增塑剂对醋酸纤维素的影响。

Through feasibility research of investment project and theory of Financial Evaluation, investment feasibility research has been done about the vinegar acid anhydride production project in this thesis.

本文运用投资项目可行性研究和财务评价理论，对醋酐生产项目进行了投资可行性研究。首先，进行了细致的市场环境分析，从醋酐行业国内外市场现状、项目投资环境、主要产品市场方面进行细致的分析。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。