条件分布

Simulation and analysis show that the method is robust and generalizes the conventional method based on second order statistics.

模拟和分析表明，这种算法是一种在高斯和分数低阶稳定分布噪声条件下具有良好韧性的非线性系统辨识方法，是对传统的二阶统计量基础上的系统辨识方法的改造与推广。

It is simulated that water volume is changed with the value of the coverage and permeability index of grouted surrounding rock to control leakage volume.

探讨了特定条件下围岩中渗流场的分布规律，模拟了改变围岩注浆圈的厚度和渗透系数的大小对涌水量的影响。

Using high resolution N-body simulations, we studied the distribution of formation-redshift of dark matter haloes with large span of mass and found that all of the 3 kinds of theoretical models including EPS theory can not explain well the simulation results. This indicates that the theoretical conditional mass function of haloes needs further improvement.

利用高分辨数值模拟，我们研究了不同质量范围的暗晕的形成红移分布，发现包括扩展PS理论在内的3种理论模型的结果与数值模拟的结果都不能完全符合，说明理论的条件概率函数还需要进一步改进。

According to the aquatic ecosystem investigations in October of 2003 and April of 2004, the composition and quantity of phytoplanktons after impounding of the Three Gorges Reservoir were studied. We discussed the influence of water dynamics condition, water nutrient level on the phytoplankton components and quantity.

根据2003年10月和2004年4月的水生生物调查，对三峡库区二期蓄水后的浮游植物组成与分布变化进行研究，探讨水力学与营养盐条件变化对库区浮游植物结构与数量的影响。

The spatial distribution patterns of the larva of Spodoptera litura on the different crops were studied. The results showed that the larvae in early instars were highly aggregate.

种群的空间图式是指某一种群的个体在其生存空间的分布形式，是种群的重要属性之一，由物种的生物学特性和环境条件所决定。

When a laser beam irradiates a cylinder shell,the irradiated area becomes softer and the cylinder shell will be destroyed.

采用3维实体单元模拟激光辐照下静止及旋转充压柱壳的应力和应变分布，分析了柱壳可能发生破坏的位置和条件。

In allusion to the problem of large variation range of the factors affecting on ladle hot states in production cycles, the ladle hot behavior in production cycles was mathematically simulated by the finite difference method and the effects of different kind of influencing factors on ladles hot behavior were studied.

本模拟软件的主要功能包括：通过输入相应的初始条件，就可以对不同类别的钢包在各种工艺运行条件下的热行为进行数值模拟，得到任何时刻热循环过程钢包温度分布和热容量、以及盛钢过程钢水温度的输出结果。

Preliminary studies on the ecological characters of freshwater cyanophage were carried out under both field condition and culturing system. The field investigation result showed that 6 in 19 water samples contained cyanophages lysing plectonema and the lysis phenomenon were readily observed without concentrating the water.

对淡水噬藻体的生态学进行了初步研究，包括淡水中噬藻体分布及感染力的调查与人工混合培养条件下噬藻体裂解宿主引起微生物和藻类种群变化的研究。

Author was menstruated content of boron and researched the status of lack of Boron and researched relativity of its Influencing facto, the results showed that the average content of available boron in the yellow soil was 0.39±0.27 mg/kg, 80 percent of its was under 0.5mg/kg which was lack for boron and 17.44 percent of its was under 0.2mg/kg which was especially lack for boron; The distribute frequencies of available boron contents of yellow soils in Chongqing was dispersedly, its range of 0.07mg/kg to 1.99mg/kg. The diversity of different zoology area was distinct. The result of pertinence analyses showed that available boron contents had correlativity with the pH(r=0.181** n=281) and CEC（r=0.124** n=281 and It had correlativity with Organic matte When the content of organic matte is high; in addition, soil granule、clime was the Influencing factor of availability of boron in Yellow Soils in Chongqing.

笔者通过调查取样对重庆市黄壤硼的含量进行测定并分析了缺硼的程度，对其影响因素进行了相关性分析，研究结果表明：重庆市黄壤有效硼的平均含量为0.39±0.27mg/kg，其中近80%的土壤样品有效硼含量低于0.5mg/kg，属于低硼或缺硼土壤，还有17.44%的土壤样品有效硼含量低于0.2mg/kg，属于极度缺硼的土壤；而有效硼含量的分布频率比较分散，变幅较大，从0.07mg/kg~1.99mg/kg，变异系数达到69.41%，不同生态类型区土壤有效硼含量的差异十分明显；而相关性分析结果表明：土壤有效硼与土壤pH值(r=0.181** n=281)和CEC（r=0.124** n=281呈正相关，在有机质含量较高的条件下与其相关性也较为显著（r=0.347** n=90，而土壤质地以及气候也对重庆市黄壤硼的有效性有很大的影响

The promising regions for Quaternary biogas accumulation and location should meet all the following requirements: adequate biogas source, long time traps, good mothballing conditions and their good association. The Sebei and Tainan areas in the north slope of the Sanhu area are favorable direction of gas migration and should be regarded as targets of next exploration.

充足的气源供给、长期存在的圈闭、良好的封堵条件及其配置良好的区带是第四系生物气藏形成与分布的有利区带，例如该区北斜坡的涩北和台南地区为第四系生物气运移和聚集的最有利区带，易形成大气田，应作为下一步勘探的重点。

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。