1) particle number density
粒子数密度
2) equivalent particle density
等效粒子数密度
3) density of gas particle number
气体粒子数密度
1.
When adiabatic mixture of weak degenerate ideal Fermi gas and Bose gas, the sudden and continuous change of density of gas particle number can cause the sudden and continuous change of temperature in quantum range.
讨论了弱简并理想费米、玻色气体绝热混合时，气体粒子数密度的突变和连续变化引起的温度在量子范围内的突变和连续变化，结果表明：与气体粒子数密度有关的物理量，将随气体粒子数密度的变化而变化。
4) charged particle density
带电粒子数密度
5) population density
粒子数密度;群体密度
6) particle density
粒子密度
1.
In the present work,We studied the effects through measuring particle density and crush strength of microspheres,based on the production of microspheres.
因此,本文拟在制备空心玻璃微球的基础上,通过改变处理液组成、处理时间等条件,测试微球粒子密度、抗压强度等变化情况,研究改性过程对其性能的影响。
2.
Energy density and particle density in high energy heavy-ion collisions are calculated with infinite series expansion method and Gauss-Laguerre formulas in numerical integration separately, and the results of these two methods are compared, the higher terms and linear terms in series expansion are also compared.
分别用无穷级数展开方法和数值积分计算中的高斯 拉盖尔求积法对高能重离子碰撞中能量密度和粒子密度数值进行计算 ,并对结果及级数展开中的高次项和一次项的大小进行了比较。
补充资料：比等效百万吨数