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相对论返波管
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相对论返波管
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相对论返波管
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relativistic backward wave tube
相对论返波管
慢波线上游(靠电子枪端)设置有一段截止波导或一个反射腔,使微波能量被反射后仍在慢波线下游端(靠收集极端)输出的相对论高功率微波器件。
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unitary similar matrix
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unitary symplectic group
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unitary transformation group
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unit cell having maximum symmetry and minimum size
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