以下为句子列表：
英文: A microwave tube in which electrons generated from a heated cathode are affected by magnetic and electric fields in such a way as to produce microwave radiation used in radar and in microwave ovens.
中文: 磁控管一种微波管，它里面的发热阴极发出的电子受到磁场和电场的影响，从而产生能用于雷达和微波炉微波辐射
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英文: A microwave tube in which electrons generated from a heated cathode are affected by magnetic and electric fields in such a way as to produce microwave radiation used in radar and in microwave ovens.
中文: 在微波系统中，来自各处的分散的输入必须被汇集在一起，以形成一个综合的输入，然后由无线电发送和接收。
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英文: Acetylsalicylic acid has been synthesized using salicylic acid and acetic anhydride with microwave radiation catalyzed by aluminum chloride. The effecting factors of this method were also discussed.
中文: 摘要以水杨酸和乙酸酐为原料，以无水三氯化铝作催化剂，微波辐射合成了乙酰水杨酸，并讨论了影响反应的因素。
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英文: Graft co-polymer of starch-acrylamide, tested by IR, was prepared by microwave radiation and chemical graft.
中文: 摘要微波预辐射法和化学接枝法均可合成淀粉－丙烯酰胺接枝物，产物可经红外光谱证明。
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英文: However, their device works only with microwave radiation and only in two dimensions. And it does not yet provide complete invisibility, producing a small shadow that can be detected.
中文: 但是，他们的设计还只能针对微波，并且只能在二维空间里实现。此外它也不能做到完全隐形，而是还留有一个能看得出来的影子。
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