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

单词	pencil beam antenna
释义	pencil beam antenna [`pen·sǝl ´bēm an´ten·ǝ] ^{ELECTROMAGNETISM} Unidirectional antenna designed so that cross sections of the major lobe formed by planes perpendicular to the direction of maximum radiation are approximately circular.
随便看	rhodoplast rhodopsin Rhodospirillaceae Rhodospirillales Rhodospirillineae rhodoxanthin rhohelos Rhoipteleaceae rhomb rhombencephalon rhombic antenna rhombic dodecahedron rhombic lattice rhombic sulfur rhombic system Rhombifera rhombochasm rhomboclase rhombogen rhombohedral rhombohedral close packing rhombohedral iron ore rhombohedral lattice rhombohedral packing rhombohedral system

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