短語詞組短語flicker -fusion frequency [光]停閃頻率flicker fusion critical frequency 閃光融合臨界頻率critical flicker fusion frequency 臨界閃爍融合頻率;閃光融合頻率;閃頻值Flicker fusion frequency improves 閃爍融合頻率提高fusion flicker frequency 融合倏變頻率 返回 flicker fusion frequency