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。

youdao

The invention relates to an active frequency identification label, a system and an identification method.

本发明为一种有源射频识别标签、系统及识别方法。

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According to joining the different disturbance, this method can be divided into active frequency drift with fixed disturbance method and active frequency drift with feedback method.

该方法根据加入扰动的不同，可以分为固定扰动的主动移频式孤岛检测方法和带反馈的主动移频式孤岛检测方法。

youdao

The Navy disputes his assessment, saying this year's humpback whale season was normal, and more whales than ever before were seen in March 1998, when biologists studied humpbacks' response to the Navy's Low-Frequency Active Sonar (LFAS) equipment in Hawaiian waters.

CNN: waves

They could control for frequency of prior arrest, but not whether the individual was an active gang member.

FORBES: A Useless Study on Gun Possession

Suppression has often been shown to increase the frequency of the unwanted thoughts you were trying to rid yourself of, once the period of active suppression is over.

FORBES: Avoid The Mistake That Derails Your Resolutions Every Year