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In recent decades, tokamak discharges with zero total toroidal current have been reported in tokamak experiments, and this is one of the key problems in alternating current(AC) operations.An efficient free-boundary equilibrium code is developed to investigate such advanced tokamak discharges with current reversal equilibrium configuration. The calculation results show that the reversal current equilibrium can maintain finite pressure and also has considerable effects on the position of the X-poi... 相似文献
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本文对M6425滚刀磨“掉刀”产生的原因进行了有益的探索,指出了“掉刀”的产生是机床传动逻设计缺陷所致,并针对提出了解决问题的方案。 相似文献
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王柳青 《数字社区&智能家居》1996,(1)
一、问题的提出 随着微机的迅速普及,硬件的不断升级,软件的日益丰富,用户硬盘容量越来越大,而日益猖獗的计算机病毒却花样百出,千方百计地破坏用户的硬盘数据,令人防不牲防,往往给用户造成灾难性损失。 相似文献
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