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This paper proves that the changes of pre-compression on the windings have effects on their natural frequencies and derives their relation, which provides the experimental and theories foundation for fault diagnosis of large-scale electric transformers.
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通过对大型变压器绕组进行振动实验和根据建立的变压器绕组轴向振动数学模型的理论推导,阐明了变压器绕组预紧力的变化与其固有频率变化之间的关系,这为大型变压器的故障诊断提供了理论与实践依据。 |
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This paper proves that the maximal left normal band ho mo morphism image of free product of left normal bands is isomorphic to the free pr oduct of those left normal bands in the left normal band category.
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证明了左正规带的自由积的极大左正规带同态象同构于这些左正规带在左正规带范畴中的自由积. |
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This paper proves the existence and uniqueness of the local generalized solution of a nonlinear damped hyperbolic equation with the initial boundary value conditions and gives the sufficient conditions of blow-up of the solution of this problem.
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摘要本文证明一具有阻尼非线性双曲型方程初边值问题局部广义解的存在性和唯一性,并给出此问题解爆破的充分条件。 |
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This paper provided a new theory base for the contractors in China.
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提出的新模型为承包商从事工程承包时的报价决策提供了新的理论依据。 |
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This paper provided the theory and methods about the evaluation and training of cognition for preschool hearing-impaired children.
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本文介绍了学前聋儿认知能力评估及训练的原理和方法。 |
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This paper provided wood modification method to improve the properties of the wood such as penetrability and rigidity.
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提出了改善木材渗透性能、提高木材硬度等纳米改性方案。 |
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This paper provides a brief introduction to acupressure, and its aims and explains how it may be applied in nursing practice.
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本文介绍穴位按压法、穴位按压法于护理实务中应用的目标、和如何落实穴位按压法于护理实务中的应用。 |
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This paper provides a comparison of the ancient words including the tribe names and cattle markers in the 11(superscript th) Divanu Lughat-it Türk by famous philologist Mahmud Kashgari with those remained in Hami subdialect Uyghur central dialect.
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摘要本文以公元11世纪我国著名突厥语文学家麻赫穆德?喀什噶里的《突厥语大词典》为依据,简要讨论保留于维吾尔语中心方言哈密次方言里的中古突厥语词、部落名称和牲畜印记。 |
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This paper provides a description of the methods, skills, and knowledge of expert searchers working on medical literature search.
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摘要本方就医学文献检索的基本概念、方法和技巧作一简要介绍。 |
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This paper provides a detailed introduction to the history, delineation standards, current state and functions of metropolitan areas in the United States and Canada.
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本文对美国和加拿大都市区的历史沿革、划分标准及原则、区划现状以及意义进行了详细介绍。 |
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This paper provides a discussion from various perspectives on how to establish a comprehensive quality control system over TV programs, and it also spots a new trend of program quality control, combined with a study of the program quality control system i
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本文就如何建立电视节目的全面质量管理体系进行了多角度的探讨,结合徐州广播电视台的节目质量管理,提出了电视节目质量管理的一个新的走向和趋势。 |