查询词典 energy distribution

The numerical model based on energy conservation equation, takes into account of Gauss distribution, in space and time of laser spot, the finite size of sample, the temperature dependence of physical thermal properties, and the surface heat losses due to convection and radiation.

计算模型在能量平衡方程的基础上，将入射的脉冲激光在时间与空间上的分布以Gauss分布考虑，同时考虑工件尺寸、工件材料热物理性质及对流辐射造成的表面热损失等对温度场的影响。

It contains Euler equations for conservation of mass, momentum and energy, and Poisson equation through which the gravitational potential is determined by the density distribution of the gas itself.

它包括由质量守恒方程、动量守恒方程和能量守恒方程构成的Euler方程组以及由星体本身的密度分布决定的自引力势能所满足的Poisson方程。

In chapterⅣ, three problems in the velocity space are simulated numerically under the basic presumption that the distribution function is homogeneous in configuration space. The results of numerical simulations demonstrate that the conservation laws of momentum and energy are obeyed accurately.

第四章在"空间均匀分布"的前提下对三个速度空间中的问题作了数值模拟，数值模拟结果表明这种方法能够精确地保证动量及能量守恒。

Titanium ions were implanted into quartz and quartz coated with Ti film by MEVVA ion source implanter. The dose was 3×10^16 ions/cm^2 and 5×10^16 ions/cm^2. The ion energy and depth distribution were analyzed using simulation method.

为提高石英玻璃表面金属化膜层与基底的结合强度，利用金属蒸发真空弧离子源引出的Ti离子对石英玻璃及镀Ti膜石英玻璃进行离子注入，剂量选择3×l0^16 ions/平方公方，5×10^16 ion/平方公分，模拟分析了注入离子能量的分布。

Since the distribution uniformity of the light energy of the system is satisfactory on the circle of 0.5～10m radius and the beam path of the system offers an advantage of invertibility, it can be used in the fuse of the missile with the feature of WFOV emission and reception.

由于在半径为0.5～10m的圆周上光能量均匀性非常好，且系统光路具有可逆性，因此可用于大视场发射和接收的导弹引信中。

Since the distribution uniformity of the light energy of the system is satisfactory on the circle of 0.5～10m radius and the beam path of the system offers an advantage of invertibility, it can be used in the fuse of the missile with the feature of WFOV emission and reception. The system is comparable to its counterpart abroad.

由于在半径为0.5～10m的圆周上光能量均匀性非常好，且系统光路具有可逆性，因此可用于大视场发射和接收的导弹引信中。

The energy deposited by the particles can transfer directly or indirectly along DNA strand and the bonds of high affinity and low ionization potential respond firstly. As a result, the strand breaks and uneven distribution of breaks is formed.

原因可能在于沉积的能量直接或间接沿DNA链迁移，链上相对较弱的化学键优先产生反应，并最终导致链的断裂，从而引起断裂的不均匀分布。

Biodiversity is one of the front areas of current biological research. The mechanisms of the formation, spatial distribution pattern, conservation and utilization of biodiversity have been an important area of biological and environmental research. In this study, through analyses of data about plant diversity, animal diversity, geographic factors, climatic factors, and energy factors by use of GIS software, statistic software and ecology software, the mainland of China was divided into 241 small districts of 2° by 2°. The environmental factors in each district were analyzed and isopleth maps of environmental elements were depicted.

生物多样性是当今生物学研究的热点问题之一，生物多样性的形成机制和分布格局以及保护利用问题一直是生物学和环境科学所研究的重要内容，本文由此出发，以中国陆地为研究区域，通过植物多样性数据、动物多样性数据、地理因子、气候因子、能量因子等资料，利用MAPGIS、MAPINFO等GIS软件，SPSS、DPS等统计学软件以及CANOCO等生态学软件，将中国陆地划分为241个小区，分析了各区内的环境特点，统计了各区内生物多样性的数量，并绘出环境因子等值线图，中国陆地种子植物科、属、种，裸子植物种、蕨类植物种、兽类、鸟类、爬行类、两栖类种数的等值线分布图，对中国陆地植物、动物多样性现状、分布格局及与环境因子的关系进行了研究。

The effects of different parameters and cross-sections on axial velocity, the distribution of secondary flow, temperature field, turbulent kinetic energy, wall friction coefficient and wall Nusselt number are analyzed in detail.

详细分析了充分发展的和发展段的湍流管道内，不同截面形状和几何参数对轴向速度分布，截面二次流结构，湍动能，曲线管道摩擦比，温度分布和曲线管道Nusselt系数比等管道流动和传热特性的影响。

The search of high energy hadron collision producing lepton pairs process is useful for finding quark distribution in hadron and checking correctness of model which can explain the EMC effect.

高能强子碰撞产生轻子对的Drell-Yan过程研究，对于探寻强子内夸克分布，检验解释EMC效应唯象模型的正确性有着重要意义。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。