本文提出以双聚焦、无空间色散的设计原则,来代替常用的全消色差设计原则,使医用电子直线加速器的偏转磁铁能够具有更好的特性。
A double focusing, non spatial dispersion magnet design has been suggested to substitute the achromatic principle for improving the beam characteristics on target of the medical accelerator.
针对该问题,应用有限元数值模拟的方法,分析双圆盾构施工时纠正偏转角引起的衬砌上的附加内力。
The surrounding environment and the internal force in lining will change during the process of rolling correction.
针对该问题,应用有限元数值模拟的方法,分析双圆盾构施工时纠正偏转角引起的衬砌上的附加内力。
The surrounding environment and the internal force in lining will change during the process of rolling correction.
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