1) frequency density
频率密度
2) channel frequency,stream frequency
水流密度频率(地)
3) frequency density polygon
频率密度折线图
1.
Directed against the limits of common histogram,this paper introduces the concept of frequency density,improves the common histogram by frequency density histogram,goes a step further,and meliorates the frequency polygon by frequency density polygon,which is applied to explaining probability density function.
文章针对一般直方图的局限,引入频率密度的概念,提出改进的频率密度直方图,进而对折线图进行改进,得到频率密度折线图,以此作为概率密度的图解。
4) frequency density function
频率密度函数
5) frequency domain high density electric method
频率域高密度电法
1.
The tentative application of the frequency domain high density electric method to the detection of the underground palace under Qin Shi Huang s tomb turns out very effective.
频率域高密度电法在秦始皇陵地宫探测试验中取得了明显的探测效果,探测结果不仅证实了地宫真实存在,也初步确定了地宫墓室的位置、大小、埋深及其完好性。
6) CPSD
互功率频谱密度函数
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条