成分数密度比值
Number density ratio of compositions
簇射粒子数密度
number density of shower particles
低密度数据系统
LDDS Low Density Data System
low density data system
LDDS
电子数密度
electron density
The electron number density
electron number densities
electron number density
E-F1 valley
electric number density
电子数密度脉动
electron density fluctuations
electron density fluctuation
反转粒子数密度
inverted population density
Population inversion
非参数密度估计
non-parametric density estimation
nonparametric density estimation
Non-parameter density estimation
nonparameteric density estimation
分子数密度
molecular number density
number density of molecules
高密度数据存储系统
HDDSS High – Density Data Storage System
高密度数据发送器
high density data transmitter
HDDT
高密度数据系统
high-density data system
high density data system
HDDS High – Density Data System
高密度数字磁带
high density digital tape
HDDT
HDDT High Density Digital Tape
高密度数字磁带记录器
high density digital tape recorder
HDDTR
高密度数字存储系统
HDDSS High – Density Digital Storage System