“principal lobe”的概念、定义、翻译、参考文献-科学参考

单词	principal lobe
释义	principal lobe [`prin·sǝ·pǝl `lōb] ^PHYSICS The lobe of a radiation pattern or directivity pattern that lies on the axis of symmetry of an acoustic or electromagnetic transmitter or receptor.
随便看	smoke candle smoke chamber smoke detector smoke grenade smoke horizon smokehouse smokeless smokeless powder smoke point smoke pot smoke printing smoke projectile smoke rocket smokes smoke screen smoke shelf smoke signal smokestack smokestone smoke technique smoke test smoke washer smoke-wire method smoky quartz smoldering

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。