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Abstract: Relationships between fluidity and carbon yields of the modified pitches, which were prepared by different methods and under different conditions, have been investigated.
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文摘:初步探讨了不同方法及工艺条件下所得改性沥青流动性与炭收率的相互关系。 |
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Abstract: Renews in this paper of the surfactant oil based for surface activies agent of anionic(alcohol Sulfate,α－sulfonata,acetyl Cyanamid,and Oleie methyl ester Sulfonat etc.)Surface a ctivies agent of nonionic(APG,alcohol polyxyethnyl ether,alkyl poly
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文摘:综述了油基表面活性剂中阴离子表面活性剂(醇硫酸盐，α-磺酸盐、酰基氰胺、油酸甲酯磺酸盐等)，非离子表面活性剂(APG、脂肪醇聚氧乙烯烷基醚、烷基聚氧乙烯烷基羟基醚等)的技术进展及今后发展趋势。 |
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Abstract: Requirements for hydraulic steering rack cylinder are very high, the rack cylinder should be durable, lubricants preservable and of seal. so, finish machining and parameter-set are necessary.
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文摘:液压转向机对齿条杆部表面有很高的耐磨、储油、封存要求，为此需要一套表面超精加工工艺及加工参数设定。 |
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Abstract: Researches on unformaldehyde unironing finishing are summarized in this paper.Functions and deficiencies of glyoralamido,water soluble heat reactive polyure thane,bishydroxyethyl-sulfoue,natural high precision chitosan,reactive organosilicon,amy
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文摘:综述了无甲醛免烫整理方面的研究,分析比较了乙二醛-酰胺类整理剂、水溶热反应性聚氨酯、双羟乙基砜、天然高聚物壳聚糖、反应性的有机硅、淀粉改性物、环氧类整理剂、多羧酸化合物等无甲醛抗皱整理剂的功能以及各种整理剂存在的不足. |
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Abstract: Respective and synthetic limits both are common credit methods to eliminate double taxation, but they can greatly and distinctively influence the interest of enterprises and states, in that their effects are dependent on the operating performanc
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在抵免法下，运用分国限额法或是综合限额法解决国际重复征税问题，会对企业和国家的利益产生迥然不同的影响，其原因是两种方法在国内外不同的税率和跨国分公司不同的盈亏状况下会产生截然不同的税收效应。 |
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Abstract: Results of pot experiments showed that water deficit affected the height, buds, bulls falling and quantity of productive bulls of cotton.
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文摘:通过盆栽试验在棉花不同生育时期进行不同程度的调亏灌溉试验。 |
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Abstract: Retention of the afterbirth of the cow is the comm on disease to seriously affect the economy mileage.
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文摘:奶牛的胎衣不下，是严重影响奶牛经济效益的常见病。 |
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Abstract: Reviewed the accidents of dioxin Contamination in American and Europe.Their countermeasure were substantialy to remove the high concentration contaminated substance and to cover the low concentration contaminated substance with clean soil.Discus
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文摘:综述了欧美国家处理二口恶英污染物的一些实例，其对策主要是高浓度污染物除去、分解，低浓度的则复盖干净土壤，进而讨论了高浓度污染物中二口恶英的七种分解技术。 |
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Abstract: Rock properties of Middle Jurassic reservoir in Taibei sag of Tuha basin have been studied by means of the casting thin sections and scanning electron microscope.
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文摘:根据岩石铸体薄片和扫描电镜观察资料，分析了吐哈盆地台北凹陷中侏罗统储集层的岩性特征。 |
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Abstract: SINS initial alignment error is one of the important error sources for tactical surface to air missile precision allocation.It is necessary and advantageous to research quickly separate technique of SINS initial alignment error in outfield for i
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文摘:捷联惯性导航系统的初始对准误差是战术地空导弹精度分配中的主要误差源之一，研究在外场条件下初始对准误差的快速分离方法对于提高导弹制导精度具有积极意义。 |
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Abstract: Safety rheology and mutation are new contents in the theory of safety science.
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文摘:“安全流变-突变论”是安全科学理论的一个新内容。 |
