“directional gain”的概念、定义、翻译、参考文献-科学参考

单词	directional gain
释义	directional gain [dǝ`rek·shǝn·ǝl `gān] See <<directivity index>>
随便看	headspace head stepping rate headstock head tide headtree head up head-up display head value headwall headward erosion headwater erosion follicular lymphoma folliculate folliculitis folliculitis keloidalis follow current follower follower rail following error following limb following sea following wind follow spot follow-the-pointer indicator follow through

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