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5. 等强度线波束天线 contoured-beam antenna
6. 等效半径(导体或多导线单元的) equivalent radius (of a conductor or a multi-wire element)
7. 等角螺旋天线 equiangular spiral antenna
8. 等效各向同性辐射功率(给定方向的) equivalent isotropically radiated power (in a given direction); EIRP
9. 紧缩场辐相测试法 amplitude & phase test technique of compact range