This paper introduces a design method of microwave active frequency-multipliers.
介绍了一种微波有源倍频器的设计方法。
As a new technical method, microwave has been used in every aspect of materials.
微波作为一种新的技术手段，已广泛应用于材料的各个领域。
As a new technical method, microwave has been used in every aspect of materials.
微波作为一种新的技术手段，已广泛应用于材料的各个领域。
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