And mass will be double or triple integral, depending on how many dimensions you have, dV of whatever density function you have, dA or dV.
计算质量可看成二重或三重积分，这取决于空间维数，取决于密度函数，dA还是。
The definition and function of the volume fraction and mass fraction for the hybrid fiber composite material was approached.
讨论了混杂纤维复合材料体积含量和质量含量的定义和作用；
The probability density function (PDF) is constructed from the time distributions of signal and backgrounds and the relations among time, time uncertainty, mass, and mass difference variables.
根据信号、本底的时间分布以及时间、时间误差、质量、质量差等变量之间的关系，构建概率密度函数。
Now the function of mechanical products, structure, shape and material of the continuous improvement, precision, produce progress by mass produce type to many varieties small batch conversion.
现在机械产品的机能，结构，外形和材料的不断的改进，精度不断进步，出产类型由大批量出产向多品种小批量转化。
A distribution of air pressure and the mass of a given volume of air such that the air density is a function of only atmospheric pressure.
气压的-种分布情况，给定体积内空气质量，即空气的密度，仅仅是气压的函数。
A distribution of air pressure and the mass of a given volume of air such that the air density is not a function only of atmospheric pressure.
一种气压的分布情况，其中给定体积内的空气质量，即空气的密度，不仅仅是气压的函数。
One of those is kinetic energy, which is a function of mass and velocity.
其中之一是动能，这是一个功能的质量和速度。
The mass media and organizational communication had performed an immensurable function in this campaign.
在这场运动中，大众传媒和组织传播起到了不可估量的推动作用。
Equations of mass, momentum and second moments for particulate phase are derived from a particle PDF (probability distribution function) equation in dilute turbulent sediment-laden flows.
从颗粒运动的PDF(概率密度分布函数)输运方程出发建立颗粒相的质量、动量和脉动速度二阶矩方程。
Through contest, the transnational industry cuts the cost and also it depends on the diffusing function of the mass communication, which provides new managing methods and consuming concept.
通过跨国工业的生产竞争，跨国工业不得不更依赖大众传播的扩散功能，提供新的管理方法和消费理念，以降低成本。
This article discusses design in the mass and exploitation method of mechanism drafting CAI courseware, introduces main function traits of software and several key questions in the software design.
本文讨论了机械制图CAI课件的总体设计及开发方法，介绍了软件的主要功能特点和设计过程中的几个关键问题。
It has deduced the mathematical function of the sediment void ratio on the basis of stress and structure analysis, and then the mass and volume conversion of deep bed filtration sediment is given.
通过受力情况和结构特性的分析，推导出了沉积物空隙率的函数表达式，在此基础上，给出沉积物质量与体积的换算关系。
The research results show that, when the melt in the tundish is decreasing, the mass flow rate of melt will decrease, and so the spray density function will change.
随着中间包坩埚中金属熔体液面的降低，熔体质量流率不断减小，从而使雾化锥喷雾密度函数发生改变。
Entertainment columns are intended to meet readers psychological needs and realize the entertainment function of mass communication.
娱乐专版的出现是现时代读者心理需求的产物，有利于实现大众传播的娱乐功能。
His theory of pseudo-environment becomes the origin of the subsequent theory of "agenda setting" and research on the latent function of the mass media.
他的“拟态环境”理论，构成了后来的“议程设置”理论和大众媒介的隐性功能研究的思想根源。
The main symptoms, tumor size, immune function, life quality and survival rate in patients with late lung cancer were observed after treated with "Lung Nourishing and Mass Dissolving Decoction".
观察自拟补肺消积方对晚期肺癌的主要症状、瘤灶、免疫功能变化，及生活质量、生存率的疗效。
The object function, stiffness matrices and mass matrices of the elements can be of nonlinear relations with the design...
目标函数、各单元的刚度矩阵与质量矩阵等跟设计变量的关系可以是非线性的。
The second step is taking the mass of wheel as target function. The stress, radial and cross displacement of wheel as restrain function, the spoke profile of wheel as design variable.
第二步是以车轮的质量为目标函数，以车轮的应力、径向及横向位移为约束函数，以车轮辐板形状为设计变量进行设计。
Via the mapping of customer need view, function view and characteristic view, the customer-drive model for mass customization is structured, combining the customer need with the production data.
通过引入客户需求域和模块特性参数域，把客户需求与产品数据关联，并进行客户需求视图、功能视图和特性视图的映射，建立了大批量定制的客户驱动模型；
No single star formation mode with a constant star formation rate (ser) and an invariable initial mass function (IMF) can fit the observations of globular clusters.
没有一个单一的恒星形成恒定的恒星形成率(SER)和一个不变的初始质量函数(IMF)的模式适合球状星团的意见。
Under ultra high vacuum condition, the adsorption of oxygen and ethylene on electrolytic silver containing barium was studied by mass spectroscopy and work function change measurement.
在超高真空条件下用热脱附和功函数变化等方法研究了氧在银-钡催化剂上的吸附和反应。
The present paper expounds and discusses the general and special function, the externally-shown and internally-hidden functions, as well as individual and mass functions.
本文就其中的常规功能与特定功能、外界功能与内隐功能、个体功能与群体功能等，进行探析。
Based on the random error formulas of function, the error transfer formulas of acceleration at the vehicle mass center and axial angular rate were provided which were helpful.
根据函数随机误差公式，给出了载体质心处线加速度和轴向角速度误差传递公式，有利于惯性系统传感器的选择及系统的组建。
The structure and function of DAC7714 is introduced, and its application in the mass spectrograph based on FPGA is also given.
介绍了DAC7714的结构、功能及其在质谱仪器测控模块中基于FPGA的应用。
Both LV angiography and cardiac MRI can provide reliable information on LV size, function and mass.
左室造影和心肌mri能提供有关左室大小、功能和心肌质量的可靠信息。
The mass of the propeller (G) is objective function. The restrict equation was created and the problem has been solved by the software of MATLAB7.0.
以螺旋体的质量G作为目标函数，建立约束方程，并用MATLAB7.0软件编程求解出结果。
The mass of the propeller (G) is objective function. The restrict equation was created and the problem has been solved by the software of MATLAB7.0.
以螺旋体的质量G作为目标函数，建立约束方程，并用MATLAB7.0软件编程求解出结果。
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