Such is the case in pyrrole, thiophene, and furan.
吡咯, 噻酚和呋喃的情况就是这样.
辞典例句
It'shows that the key step is the synthesis of 4 - methyl - dihydro - furan - 2 , 3 - dione.
研究结果表明关键步骤为原料 4- 甲基 -2, 3- 呋喃二酮的合成.
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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.
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HL series of shoe adhesives, since the hard Furan Resin, cashew oil.
HL系列鞋用胶粘剂, 自硬呋喃树脂, 腰果油等.
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The casting is cast in furan sand mould.
采用呋喃树脂砂型铸造.
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An anticorrosion method of using modified 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.
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Objective To study the effect of 2 - Methylnaphtho [ 2,3 - b ] furan - 4,9 - dione ( FNQ 3 ) on Fas receptor expression and apoptosis in A 549 cells.
目的探讨2-甲基萘[2, 3-b ] 呋喃 -4,9-酮 ( FNQ3 ) 对A549细胞表面Fas受体表达和细胞凋亡的调节效应.
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Get together the important raw material that 4 hydrogen furan is manufacturing blackribbon and polyurethane material.
聚四氢呋喃是生产氨纶和聚氨酯材料的重要原料.介绍了聚四氢呋喃的新技术及国内外聚四氢蚨喃的发展情况.
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The degree of furan removing and adsorbing capacity with CNA - 795 in different regenerating conditions were mensurated.
测试了在不同再生条件下CNA-795对呋喃的脱除精度和吸附容量.
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Manufacturing method of a self - furan resin sand binder for environment protecting and its application was introduced.
介绍了一种环保型呋喃树脂砂粘结剂的制作方法和应用.
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It'shows that the key step is the synthesis of 4 - methyl - dihydro - furan - 2,3 - dione.
研究结果表明关键步骤为原料 4- 甲基 -2, 3- 呋喃二酮的合成.
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The adsorption and desorption properties of CNA - 875, CNA - 795 and CNA - E adsorbents to furan were estimated and compared.
评价比较了CNA - 875 、 CNA - 795和CNA -E 对呋喃的吸附解吸性质.
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A suitable ratio of ammonia to furan was about 10 suggested by experiments.
实验表明氨和呋喃的摩尔比维持在10左右,催化剂有较好的催化活性和选择性.
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The design and construction technique for furan resin concrete whole ground anticorrosion performance are introduced.
较详细阐述了贵溪冶炼厂呋喃树脂混凝土整体地面的设计和施工技术.
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Furazolidone in chickens is the important index of the furan drug content in the feed additive.
鸡肉中呋喃唑酮是反映饲料添加剂中呋喃类药物含量的重要指标.
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