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On the basis of magnetic fluid sealing principle and micro-nano characteristics, this paper studied and designed a kind of new micro-nano magnetic fluid sealing structure that could satisfy more nicely the sealing requirements of stirring shaft of high sp
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该文根据磁性流体密封原理和微纳米特性，研究设计了一种能更好地满足高速大长径比压力反应釜搅拌轴密封要求的新型微纳米磁性流体密封结构，并通过实验对其相关参数进行了优化设计。 |
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On the basis of mass unit matrix analytical method, taking thermal system of steam power-generation unit as study object, a new method of feed-water enthalpy rise distribution in regenerative system has been put forward through vigorous mathematical deduc
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摘要以质量单元矩阵分析法为基础，以火电机组的热力系统为研究对象，通过严谨的数学推导，提出了回热系统给水焓升分配的新方法。 |
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On the basis of more detailed and complete data, and more reliable methods, WHO now estimates that the case fatality ratio of SARS ranges from 0% to 50% depending on the age group affected, with an overall estimate of case fatality of 14% to 15%.
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通过更详细和完全的数据以及更可靠的方法，WHO现在估计SARS病死率的范围在0%到50%之间，随感染的年龄组变化，整体估计死亡率为14%到15%。 |
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On the basis of newly discovered material, a handwriting version of Qiqi Tushuo with Mei's commentaries, this paper analyzes Mei Wending's understanding of his learning of European knowledge.
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以新发现含梅文鼎注文的《奇器图说》抄本为主要资料，探讨梅氏对欧洲力学知识的理解程度、他关注的力学问题的内容以及他注解的特点和方式。 |
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On the basis of optimized structure and better economic returns, efforts will be made to quadruple the GDP of the year 2000 by 2020, and China's overall national strength and international competitiveness will increase markedly.
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在优化结构和提高效益的基础上，国内生产总值到二○二○年力争比二○○○年翻两番，综合国力和国际竞争力明显增强。 |
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On the basis of optimum control solution theory, the dynamic parameter discernment model of concrete gravity dam under the priori restraint conditions has been set up and a restraint variable-dimension method for finding the solutions of such model has be
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基于最优控制解的理论，建立了引入先验约束条件的混凝土重力坝动态参数识别模型，提出了求解该模型的约束变尺度方法。 |
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On the basis of our investigation, the following conclusions have been drawn: (1) At least three episodic accumulations and release of pressure occurred in the Cenozoic.
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(2)钻井测试与模拟结果显示，现今地层压力在浅水区为常压，在深水区有弱超压存在。 |
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On the basis of our mutual benefit, we hope to continuously strengthen our friendship and enlarge the cooperative field and scope so as to jointly create a bright future.
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互惠互利，不断地增进彼此友谊，扩大合作的领域和范围，共创辉煌的明天。 |
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On the basis of our sales forecasts, we may begin to make a profit next year.
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基于我们销售情况的预测，我们明年将开始赚钱。 |
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On the basis of overall confirming the reasonableness of available method for calculating migrated component amount, the author has further improved the true constant component fixed calculation method proposed by the author in 2000, i.e, the calculation
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摘要文章在全面论证已有组分迁移量计算法合理性的基础上，进一步完善了笔者2000年提出的真恒量组分恒定计算法，即：利用岩石的两种实测密度计算交代蚀变岩的实有真迁移质量及其原子数。 |
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On the basis of precision machinery, advanced technique of optics, electronics, computer etc. is synthetically applied to traditional Coordinate Measuring Machine (CMM) which is a advanced precision measuring equipment.
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摘要三坐标测量机以精密机械爲基础，综合应用了光学、电子、计算机等先进技术，使其成爲一种先进精密的测试仪器。 |
