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In this paper, the author investigate the oscillation of a class of second-order linear differential equations with impulses, revealing the relation between this and the nonlinear differential equations with impulses in Oscillation.
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摘要研究一类二阶线性脉冲微分方程解的振动性，揭示了此类方程与相应的非脉冲方程在振动性方面的联系。 |
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In this paper, the author points out the prominence of U.S. education, such as emphasis on creativity and communication.
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这篇文章点出了，美国教育的突出之处，比如重视创新，重视交流等。 |
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In this paper, the author presents several suggestions on improving the management system of oil and gas pipelines, taking effective maintenance measures for old pipeline systems and mastering international competition skill in pipeline design and constru
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在输油气管道的管理、老管道的维护和参与国际市场竞争等方面，提出了改进管理体制、采取有效维护手段和掌握国际竞争技巧的意见。 |
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In this paper, the author proposed different models for each of these disturbances, in order to estimate the shortest “quiet” distance between a borehole tilt observatory site and the disturbance sources for certain threshold.
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文中对这些地面载荷变化干扰影响分别建立了不同的模型，提出了针对一定的干扰限定指标，估计观测点到干扰源的最小“安静”距离的方法。 |
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In this paper, the author proposes that the Kurdish nationalist movements in this period was still in the stage of tribal resistance.
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文章认为，此时期的库尔德民族主义运动尚处于部落反抗阶段。 |
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In this paper, the author summarized the morphological features and functions of the ependymal and supraependymal ultrastructural structure, which is the main structural basis of brain-CSF neurohumoral circuit.
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本文对“脑－脑脊液神经体液回路”的主要结构基础－室管膜和室管膜上超微结构的形态学特点及功能进行综述。 |
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In this paper, the author thinks that the abbreviation of phoneticize spell of title is important in the CNMARC and tells how to apply it in the catalogue of the magazine of changed name.
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摘要主要谈在CNMARC著录中加入题名的汉语拼音缩写的可行性分析及在更名期刊著录中的应用。 |
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In this paper, the author will firstly introduce the meanings of the photometric units, photosynthetically active radiation and photosynthetic photon flux, then theoretically derive the relations of the three units above, and finally utilize the full rang
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该文在介绍人眼光度学、促进光合作用辐射功率和光合作用光子流量的基础上，主要从原理上推导出三个单位之间的转换关系，最后用三种光源具体举例计算。 |
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In this paper, the author will take the Qibei area ad the example and from the point of to describe the oil generation, migration and accurmulation characteristics in superpressure condition.
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压力对烃源岩中干酪根的热降解有阻滞作用，压力升高不仅使干酪根的化学键更稳定且不宜断裂，还使干酪根分子与烃源岩矿物结合更加牢固。 |
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In this paper, the author would like to disclose the development in transfer tool for high aspect ratio deep drawing brass tube with two stages at MIRDC.
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摘要本文主要介绍金属工业研究发展中心，以深引伸传送技术开发高长径比双阶差黄铜管件深引伸模具之成果，包含工程规划、模具设计及试模等方面。 |
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In this paper, the author, analyzes the social needs and hi-tech level, which has become the core of the national economy competence, comes up with the idea that the special stress should be laid on the training of innovative people while building the edu
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摘要针对社会的需求和高新技术水平已成为国家经济竞争力的核心成分进行分析，提出了民办高校的发展必须创建特色，并且在实施特色教育的同时，注重创新人才培养，这是我国教育现代化建设的重要组成部分，也是在高新技术开发中具有不可替代的作用。 |
