助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   first the synthesis 的翻译结果: 查询用时:0.008秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

first the synthesis
相关语句
  首先合成
     the ring-opening polymerization which need first the synthesis of bisphenol A cyclic oligomeric carbonate and then ring-opening polymerization of it,can reach a very high molecule weight;
     开环聚合法首先合成环状碳酸酯低聚物再开环聚合得到聚合物,可以获得很高分子质量聚合物;
短句来源
  “first the synthesis”译为未确定词的双语例句
     First, the synthesis evaluation of ecotourism resources in Western China on AHP method;
     首先,运用AHP法建立了西部地区旅游资源综合评价的定量模型;
短句来源
     First, the synthesis method and anti-microbial activity of bromo-sorbic acid were studied.
     第一部分为溴代山梨酸的合成方法和抗菌作用研究。
短句来源
     In this paper, first the synthesis methods, properties and applications of 1D nanostructural materials were recapitulated. We consider that combining the special condition of hydrothermal method with crystal growth property, 1D nanomaterials can be synthesized under control.
     本论文首先概括性的介绍了一维纳米材料的制备方法、性质和应用,认为将水热下的特殊条件和纳米晶体的生长特性结合起来,可以调控制备一维的纳米材料。
短句来源
     In the experiment, first the synthesis process of Sulfaquinoxaline is modified. Then, aimed at three single factors of temperature, rate of aeration and time, a series of experiments have been carried out Through the experiments, the values of the factors are optimized respectively and the feasible oxidation is obtained, which solve the problems of high cost, difficulty and low rate of retrieval.
     研究工作对磺胺喹噁啉的合成工艺进行了改进,针对反应温度、反应时间、通气速度三个单因素,进行了一系列的单因素实验,优化出各个因素的最佳值,提出了稳定的氧化条件,解决了工艺中的高成本、高难度、收率低的问题。
短句来源
     First, the synthesis of MCM-48 by above methods wasappreciated with respect to their Bragg-diffraction of X-ray (XRD) long-range orderand the results showed that MCM-48 synthesized by hydrothermal method had betterresults.
     结果发现,虽然常温法合成 MCM –48 的周期较短,但在对文献配方、工艺进行改进的情况下,产物的有序度依然远较水热法差,故选取水热合成方法制备 MCM-48。
短句来源
更多       
查询“first the synthesis”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  first the synthesis
At first the synthesis of heat shock proteins rapidly increases and generally reaches a maximum between 2 and 6 h.
      


The current situation,technical characteristics and recent progress in three new methods for producing bisphenol-A polycarbonate,including the solid state polycondensation,ring-opening polymerization,and absolute non-phosgene process,were reviewed.The problems and main obstacles in industrial applications presented in these methods were pointed out.The effects of these synthetical technologies on the structure and properties of the produced polymer were discussed,too.The Solid state polycondensation by prepolymer's...

The current situation,technical characteristics and recent progress in three new methods for producing bisphenol-A polycarbonate,including the solid state polycondensation,ring-opening polymerization,and absolute non-phosgene process,were reviewed.The problems and main obstacles in industrial applications presented in these methods were pointed out.The effects of these synthetical technologies on the structure and properties of the produced polymer were discussed,too.The Solid state polycondensation by prepolymer's synthesis and crystallization and then polycondensation of prepolymer in solid state,can obtain crystallized polycarbonate and improve the quality of polycarbonate; the ring-opening polymerization which need first the synthesis of bisphenol A cyclic oligomeric carbonate and then ring-opening polymerization of it,can reach a very high molecule weight; the absolute non-phosgene synthesis which avoids the use of toxic phosgene,is environmentally benign and can obtain high quality polymer,it has very good prospects.

介绍了双酚A聚碳酸酯不同于工业生产中常用的光气法和熔融酯交换法的3种新的合成方法,即固相缩聚法、开环聚合法、完全非光气法的实施方法、主要特点及其新进展,探讨了各种方法存在的主要问题以及对生成的聚合物结构和性能的影响。固相缩聚是由预聚物结晶后在固相缩聚,可以获得结晶型双酚A聚碳酸酯并提高聚合物质量;开环聚合法首先合成环状碳酸酯低聚物再开环聚合得到聚合物,可以获得很高分子质量聚合物;完全非光气法在合成过程中完全避免了光气的使用,环境友好,聚合物质量高,很有发展前景。

 
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关first the synthesis的内容
在知识搜索中查有关first the synthesis的内容
在数字搜索中查有关first the synthesis的内容
在概念知识元中查有关first the synthesis的内容
在学术趋势中查有关first the synthesis的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社