“instantaneous frequency”的概念、定义、翻译、参考文献-科学参考

单词	instantaneous frequency
释义	instantaneous frequency [¦in·stǝn¦tā·nē·ǝs `frē·kwǝn·sē] ^{COMMUNICATIONS} The time rate of change, divided by 2π, of a phase angle whose sine is proportional to the amplitude of a frequency-modulated wave.
随便看	postencephalitic parkinsonism postequalization poster board posterior posterior chamber posterior probabilities POS terminal poster paint poster paper postfix notation postforming post-Galilean transformation Postglacial postheating posthitis posthole posthumous structure postignition postincrementing postindexing posting interpreter postmagmatic postmeiotic fusion postmeridian postmortem

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。