英语释义

• a colorless toxic flammable liquid used in the synthesis of nylon

片语

furan sesquiterpene呋喃倍半萜

furan siering呋喃西林

furan derivative呋喃衍生物

rose furan玫瑰呋喃

furan group呋喃基

furan homologues呋喃同系物

furfuran[有化] 呋喃（等于furan）

HEPTADECADIENYL FURAN十七碳二烯基呋喃

furan plastics呋喃塑料

furan nucleus呋喃环

英汉例句

• a novel furan resin was synthesized by polycondensation between furfuralcohol and furfural.

  用糠醇和糠醛缩聚制备了新型呋喃树脂。

• several cylindrical castings with different modulus and size of riser necks cast in furan bonded silicon sand molds are examined and analyzed numerically.

  在呋喃树脂砂型条件下，针对不同模数、不同冒口颈尺寸的圆柱试样进行了模拟计算和浇注试验。

• in this article, the basic principle of alkaline condensation reactions of furfural as well as their application in the synthesis of furan perfume are described.

  本文论述了糠醛堿性缩合反应的基本原理和利用该反应合成呋喃类香料的具体应用，并对一些呋喃类香料的香气特征作了介绍。

• a new modified furan resin sand consolidation agent has been researched due to sand production in moderate shallow fine siltstone reservoir, and it has been applied successfully in qinhai oil field.

  针对我国中浅层细粉砂巖油藏开采过程中严重出砂的问题，研制出一种新型改性呋喃树脂固砂剂，并在青海油田中浅层细粉砂巖油藏水井防砂应用成功。

• in this thesis, we have focused on the synthesis of highly substituted furan by the cycloaddition reaction of conjugated enynones with nitrones.

  本论文是关于共轭烯炔酮与硝酮化合物反应生成多取代的呋喃化合物的研究，主要从三个方面进行了研究。

• 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 reason causing nodularization degeneration in surface layer of furan resin sand nodular iron castings was analyzed.

  对呋喃树脂砂球墨铸铁件表层球化衰退原因进行了分析。

• a self-harden furan resin of low nitrogen and free formaldehyde has been introduced with analysis on the process factors effecting properties.

  本文介绍一种低氮低游离醛自硬化呋喃树脂，并对影响树脂性能的合成工艺因素进行分析。

• by adopting the compound mold of die mold, furan resin sand and graphite sand, the heavy duty thin wall complex al-alloy castings have been successfully produced.

  采用金属型、呋喃树脂砂、石墨砂等复合铸型，成功生产了大型、薄壁、复杂铝合金铸件。

• an anticorrosion method of using modified water glass concrete lining of furan resin for saturators is introduced.

  介绍了一种对饱和器采用呋喃改性水玻璃混凝土衬里的防腐蚀方法。

• novel furan polyols, use thereof as polyols in formation of polyurethanes, polyurethanes thus obtained and process for preparing same.

  新型呋喃多元醇，作为合成聚氨酯的多元醇，所制得的聚氨酯及其制备方贩。

• the review of recent research progresses of furan resin was presented and discussed.

  综述了近年来呋喃树脂的研究进展。

• gc-ms analysis of the volatiles from host plant: the volatile substances that the mulberry twig sets free consists of hydrocarbons , alkene , wine , ketone , phenol and furan etc.

  不同处理的桑树枝条的气象色谱-质谱分析桑枝条释放的挥发物包括烷烃类、烯类、醇类、酮类、酚类、呋喃等。

• a novel technique for preparing furan through decarbonylation of furfural developed by shanxi institute of coal chemistry was described in detail.

  并详细评述了山西煤炭化学研究所的糠醛脱羰制呋喃的新工艺。

• pyrrole, imidazole and furan are biodegradable organics, and pyridine are poor biodegradable organics.

  吡咯、咪唑、呋喃为可降解有机物，吡啶为难降解有机物。

• furan resin sand is poor in collapsibility when it is used for al alloy casting, specially for some large, thin section castings.

  呋喃树脂砂用于铝合金铸造时，特别是对于一些大型、薄壁铝合金铸件，型芯的溃散性较差。

• 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。

• by decreasing the grade of cast iron, using furan resin selfsetting sand as a substitute for clay sand to make the core and prolonging cooling time in mould, the cracking problem has been solved.

  通过降低材料牌号，使用呋喃树脂自硬砂取代粘土制芯，延长铸件在型内冷却时间，使裂纹缺陷问题得到解决。

• the compounds containing furan ring exhibited a higher activity than others.

  其中含有呋喃环的化合物的镇痛活性最高；

• this essay deals with the modeling methodology of furan resin-sand in the real production process, and common disadvantages of this process are analyzed and measures to be taken are discussed.

  前言： 从生产实际出发，阐述了呋喃树脂砂的造型工艺，分析了常见缺陷的成因，提出了有针对性的预防措施。

• the structure changing before and after hardening reaction of furan resin was systematically investigated using infrared spectroscopy.

  采用红外光谱法等分析测试手段对呋喃树脂在硬化反应前后的结构变化进行了系统研究。

• experiments demonstrated that anti-2- nonyl olefin aldehyde, furan aldehyde and 2-methyl aldehyde etc. had direct relation with aging flavor.

  经实验证明反-2-壬烯醛、呋喃醛、2-甲基醛等与老化味存在着直接关系。

• in hydrolysis of lignocellulosic materials, a lot of compounds which are inhibitory to microorganisms can be formed such as: weak acids, furan derivatives, and phenolic compounds.

  在纤维素稀酸水解发酵制乙醇的过程中，由于弱酸、呋喃衍生物和苯系化合物对微生物的影响，乙醇的产量和产率都不高。

• fumo plastic, white latex, pressure, urine aldehyde plastic, ethanol diluted materials, construction plastic, strong plastic, shuangzufen plastic, furan resins such as plastic manufacturing.

  复膜胶、白乳胶、压敏胶、尿醛胶、乙醇稀料、建筑胶、大力胶、双组份胶、呋喃树脂胶等类制造。

• compared with the optical kerr effect of the furan homologues, pyrrole homologues are good nonlinear optical materials in application prospect.

  与呋喃同系物的光克尔效应相比，吡咯同系物是具有良好应用前景的非线性光学材料。