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d layer
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【电】 D层
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详细解释：
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以下为句子列表：
英文: A better positive hybrid effect of fibers is found on concrete component wrapped layer by layer with Glass fiber reinforced polymer (GFRP) and carbon fiber reinforced polymer (CFRP).
中文: 摘要碳纤维与玻璃纤维进行层间混杂后用来进行混凝土结构的加固，可以产生较好的正向混杂效应。
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英文: A special black anti-wear coating has been presented to renovate the wearing anodized layer of aluminum alloy.
中文: 摘要针对黑色阳极氧化膜层的修复研制了一种专用耐磨涂料，该涂料可直接喷涂在原阳极氧化膜层上，热固化成膜。
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英文: Abstract: In this paper,the efficient stress method is used as main means,while the Railway Engineering Anti-Earthquake Design Specification and the dynamic triaxial test are used as additional means.The authors analyze the ground layer liquefaction of sh
中文: 文摘:以有效应力原理的有限元计算分析为主、铁路工程抗震设计规范及室内动三轴实验为辅，对修建在粉土或粉细砂层中的盾构隧道进行了两种不同埋深情况下的液化分析，得出了埋深不同液化区出现区域不同的结论，并提出隧道抗液化的合理埋深。
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英文: Abstract: The average diffusion coefficient of carbon in surface layer of steel 20 rare ea rth carburized at 880 and 900 ℃ for 8 h was calculated by substituting the mea sured layer depths into the diffusion equation.
中文: 文摘:通过对20钢常规气体渗碳和稀土渗碳层深的测定，计算出稀土渗碳时碳在奥氏体中的平均扩散系数。
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英文: Abstract: The effect of different carburizing programs on the microstructure and thick of carburized layer of screw bevel gears has been studied, meanwhile the fatigue life of these gears has also tested.
中文: 文摘:本文研究了不同渗碳淬火工艺对螺伞齿轮组织及渗层深度等影响，并对螺伞齿轮进行了台架疲劳测试。
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