[名词解释] 交通密度(Density)
[名词解释] 接种密度 inoculum density
[名词解释] 临界密度(Critical Density)
[名词解释] 神经调节(nervous regulation)
[名词解释] 体液调节(humoral regulation)
[名词解释] 自身调节(auto regulation)
[名词解释] 芽梢密度(Shoot density)
[名词解释] 功率密度 power density
[名词解释] 关键字密度(Keyword Density)
[名词解释] 中子数密度 neutron (number) density