“narrow-beam antenna”的概念、定义、翻译、参考文献-科学参考

单词	narrow-beam antenna
释义	narrow-beam antenna [`nar·ō ¦bēm an`ten·ǝ] ^{ELECTROMAGNETISM} An antenna which radiates most of its power in a cone having a radius of only a few degrees.
随便看	PF key PFM p-form Pfund series PGA PGR pH pH\\(S\\) phacella phacellite phacolith Phaenocephalidae Phaenothontidae Phaeocoleosporae Phaeodictyosporae Phaeodidymae Phaeodorina Phaeohelicosporae Phaeophragmiae Phaeophyta Phaeosporae Phaeostaurosporae phage phage cross phage induction

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