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活塞环在生产使用过程中的断裂 被引量:1
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作者 邱复兴 《内燃机配件》 2008年第2期24-30,共7页
本文较全面介绍了活塞环在生产使用过程中发生断裂的原因及其对策,供活塞环设计、制造、使用人员参考。
关键词 活塞环 断裂 低强度相 脆性 氢脆 抵头 积炭 结胶
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Energies and Transition Rates of Low-Lying Excited States for Beryllium
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作者 韩利红 苟秉聪 王菲 《Journal of Beijing Institute of Technology》 EI CAS 2002年第1期109-112,共4页
Low lying excited states of beryllium are calculated with multiconfiguration interaction method. The relativisitic corrections and mass polarization are included. The oscillator strength and radiation rates are also ... Low lying excited states of beryllium are calculated with multiconfiguration interaction method. The relativisitic corrections and mass polarization are included. The oscillator strength and radiation rates are also calculated. Our results are in good agreement with other theoretical data. 展开更多
关键词 oscillator strength radiation transition BERYLLIUM
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