查询词典 furan

The distribution law of furan content in oil of large step-down transformers in Shanghai Grid is researched by statistical analysis.

摘要利用统计分析技术，研究了上海地区电网大型降压变油中糠醛含量的分布规律，提出了在其应用中应注意的问题。

Taking advantage of the research basis on indole and furan derivatives in our group, a series of 2-substituted 6-benzyloxyindole derivatives was designed and synthesized.

通过初步的体外生物活性试验，测试了所合成化合物对稻瘟霉菌等真菌和细菌的抑制活性，以及对肿瘤细胞株的细胞毒活性。

Possible mechanisms and relative energetics for protonation of pyrrole and furan by H3O＋ and in the gas phase have been explored.

以H3O+和NH4+作为质子源，对吡咯和呋喃气相质子化过程的机理进行了计算研究。

Two production methods for preparing furan through decarbonylation of furfural were introduced: i.

介绍糠醛脱羰法制备呋喃的2种生产方法：液相法和气相法。

In this paper, from the viewpoint of latent functional group, application and development of heterocyclic compounds such as furan nucleus and thiofuran nucleus used in organic synthesis as pre-functional group are introduced.

本文从潜官能团角度概括介绍了呋喃环和噻吩环作为前官能团在有机合成中的应用及进展，展望了杂环作为前官能团在天然产物合成中的重要意义。

Furan music is a professional domestic chemical equipment manufacturers, domestic emulsion is a pioneer in machine manufacturing.

上海福冉乐机电制造有限公司是一家国内化工设备专业厂家，是目前国内乳化机制造业的先驱。

Coumarin furan found in the volatile fig extract, accounting for fig dry weight of 0 5%, can be used to treat prostate cancer and skin cancer.

呋喃香豆素存在于无花果的挥发性提取物之中，占无花果干重的0 5％，可用于治疗前列腺癌和皮肤癌。

Such is the case in pyrrole, thiophene, and furan

吡咯、噻酚和呋喃的情况就是这样。

Authors introduces an example of applying no-bake furan resin sand technology to large-scale and high-efficient molding line .

介绍了一种把呋喃树脂自硬砂工艺应用于大批量、高效率造型线的实例。

The mechanism was discussed in the proton acid catalytic reaction of furan phenol cyclization.

探讨了呋喃酚环合反应质子酸催化机理。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。