In this paper gives a general expression of matter density ρ that is relative to cosmological different inflations, and a new general solution of the cosmological scale factor is derived out.
获得了相关于宇宙暴涨的具有一般形式的物质密度 ρ的表达式 ,解出了表征宇宙标度因子演化的一般解 ,得到当宇宙学常数对物质密度的贡献大于零时有指数复合函数形式的一般暴涨 ,当宇宙学常数对密度的贡献小于零时宇宙有余弦复合函数形式的演化 。
Study on the Relation of Dark Matter s Density Slope and the Non-extensive Index;
暗物质密度衰减与非广延参量关系的研究
Specific gravity is the ratio of the density of a substance to the density of water.
比重是某物质的密度与水的密度之比。
The mass of one unit of volume of a material is called its density.
物质单位体积的质量称之为密度。
The specific gravity of a material is the ratio of its density to that of water and is therefore a pure number.
物质的比重指的是物质的密度与水的密度的比值，所以是纯数。
Some dense substances allow electricity to flow through them freely.
有些密度大的物质容易让电流通过。
Quark Mass Density-and Temperature-dependent Model for Strange Quark Matter
奇异夸克物质的夸克质量密度温度相关模型(英文)
Evidence indicates that the outer core is about twice as dense as the material in the mantle.
有证据表明，外地核的密度约为地幔物质的两倍。
number density of molecules
分子数密度 -每单位体积的物质的克分子数
The expression of the nutrient density of a food is presented as the index of nutrient quality (INQ).
食物营养密度的表述被作为营养质量的指数。
A Study on Molecular Spectra of Aicohol-Water Mixtures and the Diffusion Theory with Photon Density Wave;
醇类物质光谱学和光子密度波扩散理论研究
Effect of Density and Fertilizers Application on Flavor Components and Quality of Burley Tobacco;
密度与施肥对白肋烟香味物及品质的影响
Physico-mechanical Properties of Pinus densiflora Plantations of Different Stand Densities
不同林分密度人工林赤松物理力学性质的比较
STUDY ON THE BONE MARTIN,BMD AND BIOMECHANICS AMONG AGED FEMALE RAT
老龄骨质疏松骨形态、骨密度、生物力学实验研究
Effects of Density on Dry Matter Accumulation and Distribution of Silage Maize
密度对饲用玉米干物质积累和分配的影响
Dry Material Accumulation and Dynamic Distribution of Xiang za 8th Under Different Density
不同密度下湘杂棉8号干物质积累及动态分配
Dual energy X-ray absorptiometry monitor bone mineralization in lower limb lengthening of children
双能量X线骨质密度测量仪监测小儿下肢骨延长骨矿物质的变化
We observe in the galaxy much larger, denser, and more massive aggregates of cold interstellar matter.
在银河系中还观测到大小，密度和质量都要大得多的冷星际物质团。
This elevates the temperature of the adjacent material, making it less dense, and it, too, starts migrating upwards.
这提高了邻近物质的温度，使其密度降低，并且开始向上移动。