查询词典 density function

E. thickness of the copper wire wall, length of the single conductor wire, height of the solenoid, the exciting current and the current density, the working temperature of the conductor, time of exciting and demagnetizing, the cooling water pressure and flux density, etc..

所建立的数学模型包含3个目标函数（即能耗极小化目标函数、铜耗极小化目标函数和纯铁用量极小化目标函数）、7个设计变量（即铜管规格参数a、b、t，线圈匝数N〓、N〓，铁铠磁通密度B〓和冷却水压p）和8类14个约束条件（即铜管壁厚、单饼导线长度、螺线管高度、激磁电流与电流密度、导体工作温度、激退磁时间，冷却水压和铁铠磁通密度等约束条件）。

In the simulation model, the cellular automata model is applied to describe the tunnels system, and a cellular is used to represent an energy unit of flame, which is eradiated from the fire-point and contains such status parameters as temperature, velocity, smog density, density of poisonous gases.

在该方法中，用元胞自动机模型描述地下矿巷道网络系统，用元胞来描述火焰蔓延能量单元，该单元用火焰温度、蔓延速度、烟雾浓度和有毒气体浓度等状态参数来描述。

An investigation was carried out in the Huanghai Sea and the East China Sea to reveal the quantitative relationship between the density of flagellates and suspended paticles in the summer of 2001. The results show that the density of flagellates varies from 44 to 12 600 i./cm^3, which can reach a large percentage of the suspended particles.

对2001年8月黄海中部和南部以及东海北部海洋鞭毛虫的丰度及其与悬浮颗粒物的数量关系进行了研究，发现调查区域内的鞭毛虫丰度为44～12 600个／平方公分，它们在悬浮颗粒中所占的比例可达60%以上。

2In order to reduce the randomness of choosing initial centers, this paper puts forward an algorithm of initialing centers called BD which is based on density. According to the whole construction of dataset, the dataset would be partitioned by density first and then choosing initial centers on the basis of some strategies. It will make choosing work more reasonable.

提出了一种初始点选取的算法，即基于密度划分的BD算法，目的是为了减低初始点选取的随机性，它是从数据集的整体结构出发，先通过对数据集进行密度划分，在此基础上按照某种策略选择初始点，使初始点的选择更加合理。

The density of states and charge density distribution are used to study the underlying mechanism of structure and phase stability of ternary Laves phases in Mg-Al-Ca alloys.

态密度和电荷密度的计算用来研究Mg-Al-Ca合金中三元Laves相稳定性的内在微观机制。

Most plastic mulches used in the United States are either linear low-density or high-density polyethylene. They are typically 0.012 to 0.031 mm thick, 122 to 152.4 cm wide, and on rolls 607 to 1463 m long.

在美国使用的大多数塑料薄膜不是长条形低密度的就是长条形高密度的聚乙烯膜，通常厚0.012~0.031mm ，宽122~152.4cm ，每卷长607~1463cm 。

The mean arterial pressurewere measured in each rat.the stereological parameters such as the myocardial surface density、the myocardial volume density、the myocardial specific surface and the mean free path etc.were measured and numerated.

建立腹主动脉缩窄性高血压大鼠模型，测定大鼠平均动脉压、大鼠心肌的表面积密度、体积密度、比表面及平均自由程等各项体视学参数并计算。

This delayed density dependence may also produce cycles in predator and prey abundance; Overcompensating density dependence.

这种延缓的密度制约可能使捕食者和猎物多度之间产生周期。

Overcompensating density dependence occurs where the effect of increased density more than outweighs the initial augmentation.

当密 度制约的效应超过了开始种群数量的增加，称为过度补偿。

The high xylanase producing strain parasitizing on the shelling fresh ramie was screened in the paper.The single factor experiment is carried out on the various carbon sources and density, the various nitrogen and density,the initial pH, the quantity of vaccination,the fermentation temperature and time.

摘 要：本文以去皮的新鲜苎麻为原料，筛选产木聚糖酶的高产寄生菌株，对其碳源种类及浓度，氮源种类及浓度，初适pH值、接种量、发酵温度及时间进行了单因素的试验，并选取影响显著的pH值、接种量、发酵温度及时间进行四因素三水平的正交实验。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。