population n density 人口密度 ; 种群密度
ionization n density 电离密度
neutron n density 中子密度
grain n density 粒子密度
fission n density 裂变密度
electron n density 电子密度
collision n density 碰撞密度
radiation n density 辐射密度
stagnation n density 滞止密度
neutron n flux density 中子通量密度
The distributions of. temperature T, density N and velocity V are given using the equations coupling the MHD waves with the coronal atmosphere.
本文利用MHD波与日冕大气耦合的磁流体动力学方程组，计算得到冕洞内的日冕大气的温度T、密度N和流速V的分布。
The regression mathematical models for the yields of summermilletassociated with crop density, N and P fertilizers were established by using the optimal saturation D design.
研究采用二次饱和D-最优设计，建立了夏谷产量与密度、磷、氮肥的回归数学模型。
Mathematic models between yield and N fertilizer and plant density for two peanut variety types were set up by using quadratic saturation D-optimization design under single-seed planting.
采用二次饱和D—最优设计建立了精播条件下不同类型花生品种N肥用量和密度与产量的数学模型，探讨肥料与密度的产量效应及优化配置。
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