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- tetraphenyl furan 四苯基呋喃
- Such is the case in pyrrole, thiophene, and furan. 吡咯,噻酚和呋喃的情况就是这样。
- Such is the case in pyrrole, thiophene, and furan . 吡咯，噻酚和呋喃的情况就是这样。
- The casting is cast in furan sand mould. 采用呋喃树脂砂型铸造。
- Process Control of Furan Resin-Bonded Sand Self-Curing Technology. 呋喃树脂自硬砂生产工艺过程控制。
- Catalytic hydrogenation of pyrrole, furan and thiophene was investigated. 考察了常温常压下吡咯、呋喃和噻吩的催化加氢反应;
- Any of several drugs derived from furan that are used to inhibit bacterial growth. 硝基呋喃一种呋喃衍生药物，用来抑制细菌的生长
- MNDO calculations and group theory were carried out on tetraphenyl porphyrine(TPP) to obtain its optimum molecular geometry. 运用MNDO计算和群论，优化得到了较满意的中位取代四苯基卟啉(H2TPP)的分子构型。
- 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。
- 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。
- METHODS To identify the component of prescription,absorption spectrometry and method of tetraphenyl boron sodium to quantitative analysis the active component were used. 方法对处方成分进行定性鉴别,采取紫外分光光度法、四苯硼钠法对有效成分进行定量分析。
- 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。
- An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac... 用溴酚蓝对DMDAAC进行定性分析，用四苯硼酸钠及折光率法进行定量分析的方法进行了探讨。
- 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。
- 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。
- 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。
- The author believes that China has possessed the capabilities of developing commercial furan phenol technology. 作者认为我国已具备开发呋喃酚工业化路线的能力。
- 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。
- 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。
- 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。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
