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In this paper some discussion of relative researchs about Maleic Anhydride synthesis and it's ramification are given.These researchs are of important significance for our chemical industry to get out of difficult position and have a long-term development.
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本文综述了顺酐合成工艺的发展概况及顺酐下游产品的开发与利用,对国内围绕顺酐合成及其衍生物的相关研究课题做了讨论,这些课题对我国有机化工行业的长远发展有着重要的意义。 |
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In this paper some key technology to prepare PAN precursor of carbon fiber with good properties in Japanese literature that mentioned thses factors were reviewed.
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本文从以上几个方面总结了日本文献中制取高性能碳纤维原丝的几种关键技术。 |
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In this paper studieol the effects of stick-out, welding voltage, and shielding mixed gas on deposition rates.The major factor affecting deposition rates is ascertained.
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在理论分析的基础上,对干伸长、焊接电压、混合保护气体的配比成分等因素与熔敷率之间的关系作了大量系统试验,确定了影响熔敷率提高的主要因素,指出阻碍熔敷率提高的核心问题。 |
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In this paper synthesis process of pseudo boehmite by aluminum sulfate and its application in the preparation FCC catalysts are described.
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摘要报导了以硫酸铝为原料合成拟薄水铝石的工艺以及该工艺所制拟薄水铝石用于只FCC催化剂的制备。 |
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In this paper tendency analysis method is used to analyze the trend of annual and seasonal rainfall at 35 stations of Fujian from 1961 to 2003.
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摘要本文应用趋势分析方法分析了福建省35个代表站1961~2003年年、季降水的变化规律。 |
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In this paper the application of data mining technology in quality control of agricultural machinery was studied and quality control and analyse method based on product fault was presented, aiming at the problem that superficial information of product fau
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摘要针对传统质量信息分析方法只能获得产品故障表层信息这一间题,对数据挖掘技术在农业机械产品质量控制管理系统中的应用进行了研究,提出了以产品故障信息为基础的外部质量控制和分析的方法。 |
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In this paper the auther clarifies first the concept of “geo” in the word of geopolitics from the angles of geopolitical history and Chinas interpretation of this word, from the relationship between geopolitics and geography.
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作者在文章中首先从地缘政治学的历史及其汉语翻译的角度,以及从地缘政治与地理的关系,澄清了“地缘”的概念。 |
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In this paper the author analysed the cause of yarn hairiness and its influence on the property of the fabric with the measures to reduce hairiness in yarn spinning, winding and sizing processes discussed.
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摘要分析了纱线毛羽产生原因及其对织物性能的影响,并提出了在细纱、络筒、浆纱等工序降低纱线毛羽的措施。 |
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In this paper the author analyses the relationship of the event of stealing pears in Augustine's De Confessiones and his theological reflection, pointing out the similarity of it to that of Adam and Eve's fall, reviewing the stealing pears event within Au
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摘要文章分析了奥古斯丁《忏悔录》第2卷“偷梨”这一事件与其神学反思的联系,著重于指出其与《创世记》亚当夏娃违背上帝命令一事的相似性,从而使这一事件在奥古斯丁神哲学整体中得到比较深刻的理解。 |
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In this paper the author describes a way of determining the residual pre-tightening force after adding elastic elements to the connecting bolt at the flange on ball mill's shell and therefore a formula is induced.
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阐迷了球磨机筒体法兰联接螺栓增加弹性元件后其剩余预紧力的确定方法,并导出了相应的计算公式。 |
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In this paper the author discusses the petrography feature of the rock in the scale ductile shear zone and the characteristics of the shear belt.
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本文主要从岩石学的角度论述了两条韧性剪切带内的岩石岩相学特征,讨论了韧性剪切带以及剪切带内岩石的特征。 |