频数
frequency
频数分布
frequency distribution
频数分配表
frequency table
七角形
heptagon; septangle
heptagonus
奇三角形
odd triangle
碰撞频率
collision frequency
偏组频率
bias-set frequency
拼合频率
hybrid frequency
频
frequency; frequently
频比
frequency ratio
频便
pollakicoprosis
频标
frequency scale
频带
band; frequency band
频带分割
band splitting
频带宽度
frequency bandwidth
频带宽度压缩
band width compression
频带扩展
band spreading
频带谱
band spectrum
频带清晰度
band articulation
频道
channel
frequency channel
channel