体密度

The universal formulases of a average internal energy of atom in metal and the two different kinds of metal atomic interaction potential have been derived by applying to the classical concept of the metalic structure and concerning the Gauss type ball symmetry of the around electronic density of atomic nucleus.

本文介绍了亚稳态Fe50Cu50固溶体晶格常数的测量结果，应用金属结构的经典概念并考虑到原子核周围电子密度的高斯型球对称分布，导出了计算金属中一个原子的平均内能和两种不同金属原子相互作用势的普遍公式。

Improvement of the electrical properties of LLDPE compound highly loaded with aluminium hydroxide by grafting methacrylic acid to the matrix is investigated.

本文研究了基体接枝甲基丙烯酸对氢氧化铝Al(OH3填充线性低密度聚乙烯电气性能的改善。

The probability density functions of scintillation for the terrain, the sea surface and the forest, the two scattering terrain model was obtained, in which the probability integral is made by the method of steepest descent.

分析中采用最速下降法处理概率积分，获得了与岩石、海洋和森林二大类地物散射体对应的闪烁概率密度函数。

The observation showes that average VC, D,Δp and ω at the surface water during spring tide are 98.0μl/L, 39.8μm, 1173 kg/m^3 and 1.14 mm/s, whereas those during neap tide are 70.8 μl/L, 64.4μm, 919 kg/m^3 and 2.32 mm/s, respectively.

观测结果显示，徐六泾大、小潮表层絮凝体体积浓度、粒径、有效密度和静水沉速的平均值分别为98.0μl/L、39.8μm、1173kg/平方公尺、1.14mm/s和70.8μl/L、64.4μm、919kg/平方公尺，2.32mm/s。

A simple entanglement measure for multipartite pure states is formulated based on the von Neumann entropy of a series of reduced density matrices.

本文推广了两态两体纯态系统的纠缠度量方法，即利用约化密度矩阵的von Neu-mann熵来度量纯态纠缠。

The length and number of apophysis was different, furthermore, neurofibril of immune-positive neuron of nNOS shows brown pinch-and-swell form and distributes interlacedly. We can draw

随着年龄增长，大脑皮质nNOS阳性神经元的密度、突起数、最长突起长度逐渐减小，而胞体截面积却逐渐增加，这些指标到了老年变化极显著P

The same set of EX-RMs244 grades, over and octene rigid HDPE material, melt flow rate of 1.7 g/10min, density of 0.944 g/cm3, with a lower processing temperature and sintering characteristics of fast, wide Machinable .

同一系列的EX-RMs244牌号，是超硬性辛烯HDPE材料，熔体流动速率为1.7 g/10min，密度为0.944 g/cm3，具有较低的加工温度和可快速烧结的特性，可加工范围宽。

EX-RMs539 brand is an octene MDPE materials, melt flow rate of up to 5.2 g/10min, density of 0.939 g/cm3, its low viscosity, processability range.

EX-RMs539牌号是一种辛烯MDPE材料，熔体流动速率高达5.2 g/10min，密度为0.939 g/cm3，其粘度低，可加工范围广。

The highest oocysts producing period occurred in April, and the highest oocyst hatching and density of population was in May. And the sexual reproduction process had relation to temperature, food and size of planarians.

卵囊产出的高峰在4月，卵囊孵化与种群密度最高峰在5月，其有性生殖过程与温度、食物、虫体大小密切相关。

In allusion to the existing problems in bridge structure optimization design,an optimality criteria method for topology optimization of continuous structures based on solid isotropic material with penalization is proposed.

针对桥梁结构优化设计中存在的问题，而提出的一种基于密度惩罚法的连续体结构拓扑优化问题的优化准则算法，经Matlab实例试算表明，可得到满意的优化结果，因而具有一定的应用推广价值。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐