单词	in the reckoning there is no error
释义	英華☞No error in the reckoning
随便看	frequency detuning frequency deviation frequency deviation meter frequency deviation ratio frequency diagram frequency dictionary frequency difference frequency difference multiplier frequency-direction spectrum frequency discount frequency discrimination frequency discrimination telegraph frequency discriminator frequency discrinimator frequency dispersion frequency distortion frequency distribution frequency distribution curve frequency distribution--frequency allocation frequency distribution function frequency distribution histogram frequency distribution table frequency diversity frequency diversity radar frequency diversity reception