电磁场角动量密度矢量
angular momentum density vector of electromagnetic field
轨道角动量密度
orbital angular momentum density
电磁场角动量流密度张量
angular momentum flow density tensor of electromagnetic field
动量和密度相关性
momentum and density dependence
高密度自动雨量站
high resolution rain gauge observation net
四维动量流密度张量
four-dimensional momentum current density tensor
振动式密度测量仪
vibrating type density measurement system
Densitune音叉振动密度仪
Densitune tuning fork vibration densimeter
冲量动量方程式
impulse-momentum equation
冲量动量原理
impulse momentum principle