共查询到20条相似文献,搜索用时 125 毫秒
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啮合同向双螺杆挤出机新型混炼元件性能及应用 总被引:6,自引:3,他引:3
就全啮合同双向螺杆挤出机中的混合过程进行了分析讨论,分析了普通螺纹元件和捏合盘元件的混合特性和泵送特性,针对这些元件存在的问题讨论了新型混炼元件的特点(包括典型分散性混炼元件和典型分布性混炼元元件),并作了深入的对比讨论,就上述元件在聚合物改性加工,共混和填充过程中典型的应用示例进行了分析讨论。 相似文献
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本文讨论了客车涂装过程中,腻子,底漆,金属闪光漆,面漆及彩条等方面的材料和施工工艺中的问题和解决方法,并讨论了涂层外观评价方法。 相似文献
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本文以高分子物理的教学实践为基础,讨论了教学理念和教学方法对提高教学质量和教学效果的重要性。结合自身的教学经历,笔者分析了多媒体教学、课堂讨论和课外活动对改善教学效果的作用,并探讨了如何有效地利用多媒体教学、如何有效地组织课堂讨论和课外活动等问题。 相似文献
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介绍了甲硝哒唑的药效及其牙膏的临床试验,讨论了应用甲硝哒唑的安全性,并对牙周炎症等口腔疾病进行了分析讨论。 相似文献
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用微波辐射制备磷酸钴纳米粒子 总被引:2,自引:0,他引:2
本文介绍了用微波辐射方法制得均分散磷酸钴胶体球形微粒,并对微粒进行了结构和组成的测试,讨论了影响粒子形成的主要因素,同时对微粒形成的机理进行了讨论。 相似文献
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用微波辐射制备磷酸钴钠米粒子 总被引:3,自引:0,他引:3
本文介绍了利用微波辐射方法制得了分散磷酸钴胶体球形微粒,并对微粒进行了结构和组成的测试,讨论了影响粒子形成的主要因素,同时对微粒形成的机理进行了讨论。 相似文献
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超滤膜孔径及其分布的测定方法──Ⅰ.常用测定方法讨论 总被引:1,自引:0,他引:1
讨论了超滤膜孔径的物理意义,指出其与固体表面吸附体系中孔径概念的区别,讨论了现行各种测定方法的原理及在超滤膜孔径测定中的适用性。 相似文献
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Guidelines for the successful use of ozone as a stand-alone cooling tower water treatment method are discussed. Included are recommendations for system sizing, proper ozone residuals, mixing and distribution of the ozonated water, and potential problems and solutions. These include excessive or insufficient cycles of concentration, chemical contamination, low flow rates, high heat exchanger temperatures, and extended system turnover times. Also discussed are recommended maximum system downtimes, preferred types of towers and heat exchangers to treat with ozone, use of filtration systems, and elastomer compatibility with ozone. System monitoring and maintenance procedures are discussed along with ozonation safety considerations. With this information, two recently reported ozonation system failures are analyzed and the causes of failure are discussed. 相似文献
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MICHAEL CABLE 《Journal of the American Ceramic Society》1966,49(8):436-441
Ways of describing and defining progress of fining or the standard to be achieved are discussed. Methods of measurement are also discussed. Published quantitative data which can be used to test proposed hypotheses or theories are reviewed. Finally, processes known to be important in eliminating gas bubbles from liquids, namely rise and bursting at the surface, coalescence, and growth or dissolving are discussed. 相似文献
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泡沫性能评价方法及稳定性影响因素综述 总被引:8,自引:0,他引:8
综述了测试泡沫性能(即发泡性和稳定性)的方法,并讨论了各方法的优缺点。评述了泡沫稳定性的影响因素,并探讨了如何改变泡沫稳定性的方法。 相似文献
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A. Langstraat 《Journal of the American Oil Chemists' Society》1976,53(6):241-247
A survey of the commercially most important oil-bearing fruits and seeds is presented. Their place in the nutrition of the
world’s population is sketched, both as a source of fat and as a potential source of protein. Origin and occurrence of a number
of oil fruits and seeds are treated, and their relative importance is discussed. Characteristics of the vegetable oils are
described in the light of their fatty acid compositions. Nutritional aspects of polyunsaturated fatty acids are discussed
briefly, as well as the antinutritional properties of erucic acid. Oilseed proteins are discussed from the point of view of
their growing importance as a source of food for man, and compositions of their essential amino acids are discussed in relation
to their nutritive value. 相似文献
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概述了聚己二酸-1,2-丙二醇酯多元醇的几种相对分子质量的估算方法,讨论了这几种估算方法产生误差的原因和消除误差的对策。 相似文献
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