查询词典 probability density function

Aiming at the problems existed in the traditional experimental study and analytic methods in theory while the study was underway by the high density baler directly in laboratory, computer analysis and simulation on compressing hay in high density baler are accomplished according to the technology idea in modem design theory. The virtual prototype technology is introduced in the research.

针对在试验室条件下直接利用高密度压捆机对牧草高密度压缩过程进行研究时，传统的试验研究和理论分析方法存在的问题，本文根据现代设计理论中提出的技术思想，对牧草的高密度压捆过程进行了计算机分析与仿真研究。

ADAMS is used as an instrument to analyze the process of compressing hay in high density baler. A ADAMS model of the compressing hay in high density baler is established, and the modeling method and model structure are validated by ADAMS.

在研究中，引入了虚拟样机技术，使用ADAMS软件对牧草的高密度压捆过程进行分析，建立压缩过程中牧草的ADAMS模型，并对ADAMS的建模方式、模型结构进行了验证。

The relation of the change that the stiffness coefficient of simulation spring makes in process of the high density compressing is obtained by analysis, then the optimization analysis is achieved pointing to the compressing hay in high density baler.

通过分析获得模拟弹簧的刚性系数k随时间的变化规律，进而对牧草压缩工况进行优化分析。

The spatiotemporal spectral line intensities of the first three atomic lines in Hydrogen Balmer series (λ=656. 28, 486. 13, 434. 05nm) of RF ion source plasma, are measured with calibrated Optical Multichannel Analyzer . Some plasma parameters, including electron temperature, hydrogen atom density and hydrogen ion density, are calculated and analyzed Using Partial Local Thermodynamic Equilibrium theory and Abel transform.

实验采用绝对定标后的光学多道分析系统测定了离子源等离子体不同时间和空间位置的氢原子巴耳末谱线系中前三条谱线（λ=656.28，486.13，434.05nm）的强度，并采用PLTE的理论和Abel变换方法，计算出了高频离子源等离子体的电子温度、氢原子浓度、氢离子浓度等参数在放电的不同阶段和径向分布情况，并进行了简要分析。

According to Biot-Savart law, the magnetic induction at the diameter position of the spin axis is calculated. Furthermore, using the internal and external radius of the Earth's outer core as well as the radius of the Earth and the magnetic induction at the Earth's magnetic pole, the volume charge density and surface charge density of the Earth's outer core have been obtained.

先根据毕奥-萨伐尔定律计算球形模型绕自转轴旋转时在自转轴直径上产生的磁感应强度；再利用已知的地球外核的内外半径及地球半径和磁极处的磁感应强度值，计算出地球外核的电荷体密度及面密度。

The electronic density of states on zinc blende CdTe, VCd system and CdTe doping Cu were analyzed with density functional theory.

研究中运用密度泛函相关理论，分析闪锌矿结构CdTe，Cd空位体系和掺Cu体系的电子态密度，计算得出Td场和C3V场下Cu2+ d轨道的分裂情况。

The electronic and optical properties of blende phase ZnS systems doped with 3d transition metal ions were studied by the first-principles method based on density functional theory. The density of state, band structure, and absorption coefficient were calculated.

采用基于密度泛函理论的第一性原理方法对掺杂不同3d过渡金属元素的闪锌矿型ZnS系统进行了研究。

Band structure, density of states, and optical properties of Zinc blende CdTe have been investigated using the plane-wave ultrasoft pseudopotential technique based on density functional theory.

采用基于密度泛函理论框架下广义梯度近似平面波超软赝势法，计算了闪锌矿型CdTe的能带结构、态密度和光学性质。

PCE treatment significantly increased the bone density, ash, Ca content, bone mineral contents and bone mineral density.

对股骨之骨密度、骨灰分与骨含钙量有显著地增加，对胫骨之骨矿密度与骨矿含量也有明显上升的效果。

Bougie card is in the rapid development of position of developing of IC design, production industry as IC design, manufacturing industry, the new-style chip such as high speed, high density, SOC, ASIC appears ceaselessly, the requirement that price of high speed, high to checking equipment to put forward density, versatility, tall sex compares.

跟着IC设计、制造业的迅速成长，高速、高密度、SOC、ASIC等新型芯片不竭呈现，对测试行动措施提出了高速、高密度、通用性、高性价比的要求。

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。