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An antenna consisting of a rod of dielectric material (usually tapered) projecting from a waveguide.
1940s; earliest use found in Electronic Industries. From poly- + rod.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。