查询词典 probability density function

To realize the simple and accurate measurement of solution density,the calculation formula for solution density was deduced after establishing the relation between solution pressure and density.

为了实现对溶液密度的简单、精确测量，建立了溶液压力与溶液密度之间的关系，推导出溶液密度的计算公式，确定了利用差压传感器来实现对溶液密度的间接测量，指出了测量的难点和解决的方法。

To realize the simple and accurate measurement of solution density, the calculation formula for solution density was deduced after establishing the relation between solution pressure and density.

摘 要：为了实现对溶液密度的简单、精确测量，建立了溶液压力与溶液密度之间的关系，推导出溶液密度的计算公式，确定了利用差压传感器来实现对溶液密度的间接测量，指出了测量的难点和解决的方法。

Background— Numerous in itro studies suggest that sphingosine 1-phosphate (S1P), a bioactie lysosphingolipid associated with high-density lipoproteins, accounts at least partly for the potent antiinflammatory properties of high-density lipoprotein and, thereby, contributes to the antiatherogenic potential attributed to high-density lipoproteins.

背景——众多的活体研究表明鞘氨醇1-磷酸盐作为一种与高密度脂蛋白相关的生物活性溶血磷脂，至少是高密度脂蛋白有力抗炎特质的部分原因，从而促成高密度脂蛋白的抗动脉粥样硬化潜能。

Pulse power system has been widely used in high technology fields, whose developing direction is high storage density, light weight and small volume. Its kernel problem is to establish a pulse power storage system with high storage density. High storage density capacitor is one of the important research projects.

脉冲功率系统已应用于许多高科技领域，向高储能密度、轻量化、小型化等方向发展，其核心问题是建立高储能密度的脉冲功率储能系统，而高储能密度电容器是主要的研究对象之一。

This paper made a kind of with Xiu water forecast l aw determine high density volatilize phenol dilute multiple, have offer de a kind of scientific accurate operating analysis method for being in height of density sample, simplefast, can ensure high density volati lize successfulness and the reliability of phenol sample analysis, have great application and extending valu

提出一种以溴水预测法确定高浓度挥发酚稀释倍数，为高浓度水样提供了一种科学准确的操作分析方法。

There were no significant differences in soil bacterial and fungal biomass, total nematode density and diversity, herbivore density, bacterivore density and omnivore-predator densities between the trenched and control plots in both mineral and humus soil layers.

切根处理对腐殖质层和矿质土层的细菌和真菌生物量、线虫总密度和多样性、植食性线虫、食细菌线虫和捕食与杂食性线虫的密度均没有显著影响。

After Cryopreservation of embryo and larvae of pacific oyster Crassostrea gigas, the results indicate the survival rate of trochophore larvae is 61.1% and significantly better than that of other stage embryo or larvae(P.05).The effect of high sucrose density is better than that of low sucrose density with the same DMSO density.

对太平洋牡蛎的胚胎和幼虫的超低温冷冻保存发现，担轮幼虫的解冻复活率最高，达61.1％(3.0M DMSO)，显著高于其他发育阶段幼虫的保存结果(P＜O.05)；牡蛎担轮幼虫的保存结果显示，在相同DMSO浓度条件下，高蔗糖浓度组保存效果好于低蔗糖浓度组，但差异不显著(P＞0.05)。

The structure of uncured mix and vulcanite, physical and chemical interaction between filler and matrix, mechanical property of composites were investigated It was found and explained that the compact relationship among bound rubber, cross-linkage density and physical property in mineral filler/silicone rubber composite In detail, BR〓, D〓(cross-linkage density using basic solvent as swell liquid) and module have direct relationship, because they all show chemical interaction between filler and matrix from different angles, respectively BR〓(bound rubber in toluene solvent), D〓(cross-linkage density using toluene solvent as swell liquid) and tensile strength have compact relationship also, because they all show total interaction from different angles, respectively

研究了未硫化胶和硫化胶的结构、填料与基体的物理化学作用、及这些结构和作用的表现形式，发现和解释矿物填料/硅橡胶复合材料中结合橡胶、交联密度与复合材料的力学性能密切关系。具体说，BR〓、D〓和弹性模量均从某个侧面反映复合材料中填料与基体间的化学作用，三者的关系比较密切：BR〓、D〓和抗拉强度均反映复合材料中填料与基体间总体相互作用，三者的关系比较密切。

On the other hand, through the discussion on coronal density of flares, we found that the column mass density at the top of chromospheric flare model can not be represented the total mass above the chromosphere and the coronal density can be estimated from presure balance based on semiempirical model. Through estimations, the results show that the total mass above the chromosphere is about the same as the mass between the top of chromosphere and electron source, which so give an evidence that the source of electrons is situated at the top of flare loop.

另一方面，通过对日冕物质密度的讨论发现，半经验模型中色球顶部柱数密度不能用来代表耀斑环在日冕内的总物质，日冕物质密度可用日冕气压与半经验模型中色球顶部压力近似相等来进行估计，进而发现耀斑环在日冕内的总物质与前面估计的色球顶部到非热电子源之间的总物质近似相等，结果趋向于支持非热电子源位于环的顶部。

Seven county Citellus dauricus average density multiple comparison, different area ground Citellus dauricus average density Non- all the same, PingLuQüCitellus dauricus average density is the highest in monitoring areas P

七县区黄鼠密度两两比较，不同地区黄鼠密度不全相同，其中平鲁区黄鼠平均密度最高P

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。