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- The two currently widely used indexes, Near Point Distance (NP) and Critical Flicker Fusion Frequency (CFF), have their intrinsic defects. 目前广泛使用的调节近点距离和闪烁融合频率这二项评价视觉疲劳的指标存在着固有的缺欠。
- Evaluation criteria were subjective assessments, near point accommodation (NPA), critical fusion frequency (CFF) and work performance. 衡量效标则包括主观评比、近点调节值(NPA)、闪光融合阈值(CFF)和作业绩效。
- Four dependent measures were Critical Fusion Frequency value (CFF value), subjective visual fatigue, identification performance and attention. 因变项为：CFF值、视觉疲劳主观评量、文字辨识绩效、注意力。
- Furthermore, self-managed rest pattern would also be the best pattern in using near point accommodation (NPA), critical fusion frequency (CFF) as response variables. 而在客观眼睛疲劳数据(CFF差异值、NPA差异值)显示，在自主式休息模式的情况下，眼睛最不容易疲劳。
- critical flicker fusion frequency 临界闪烁融合频率
- critical fusion frequency(flicker fusion threshold) 临界融合频率
- Americans are the fusion of many different races. 美国人是各种种族人的熔合体。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- His work is a fusion of several different styles of music. 他的作品是几种不同音乐风格的融合。
- The fusion of copper and zinc makes the metal brass. 铜和锌的熔化制成黄铜。
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- A third party is formed by the fusion of independent republican and democrats. 一个第三党由共和党和民主党之独立份子联合而组成。
- Apreliminary Study in the Change of the Flicker Fusion Frequency in Different Exercised Loads 闪烁值在不同运动负荷中变化初探
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- Keywords mental fatigue;judgment accuracy;blood pressure （BP）;critical fusion frequency（CFF）; 精神疲劳;判断正确率;血压;闪频;
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- A fusion of religion and politics emerged. 出现了政教合一的局面
- This alloy is formed by the fusion of two types of metal. 这种合金是用两种金属熔合而成的。
