“directional gain”的概念、定义、翻译、参考文献-科学参考

单词	directional gain
释义	directional gain [dǝ`rek·shǝn·ǝl `gān] See <<directivity index>>
随便看	quadrantal spherical triangle quadrant angle of fall quadrant electrometer quadrant elevation Quadrantids quadrant mount quadrant sight quadraphonic sound system quadrate bone quadratic quadratic congruence quadratic equation quadratic form quadratic formula quadratic performance index quadratic polynomial quadratic programming quadratic reciprocity law quadratic residue quadratic Stark effect quadratic surd quadratic Zeeman effect quadratojugal quadratrix of Hippias quadrature

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。