以下为句子列表：
英文: Abstract: As the heart of TWT，the structure stability of grided electron gun directly affect pulse output performance of TWT，and the structural reliability under vibration stress are especial-ly important for today's manufacturers.
中文: 摘要：栅控电子枪作为行波管的“心脏”，其结构的稳定性直接影响着管的脉冲输出性能，特别是在振动应力下的结构可靠性更是当今生产单位关注的重点。
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