Obesity is based on the body mass index, a calculation using height and weight.
肥胖是根据身体质量指数，用身高和体重计算出来的结果。
They also found, as other researchers have, that higher body-mass index (BMI), a calculation based on height and weight, was also linked with earlier puberty.
他们同时还发现，正如其他研究人员已经发现的那样，较高的体重指数(BMI)——一项根据身高和体重计算出的指标，同样也跟早熟有联系。
The satellite signal simulator plays an important role in developing multimode receiver and high dynamic receiver which involved mass data calculation and transmission.
卫星信号仿真器在多模接收机和高动态接收机的研发中占有重要地位，它涉及到大量的数据计算和传输。
The calculation of mass distribution characteristics of fuel in tanks is a difficult and complicated work.
飞机燃油质量分布特性计算是一项复杂困难但又是十分重要的工作。
Requirements and design programmes of the widely used vibrating equipment have been introduced with emphasis on calculation of center of gravity and mass being vibrated of such equipment.
振动设备具有广泛的用途。本文就对振动设备的要求与设计程序作了介绍；重点介绍了设备重心和参振质量的计算。
A useful unit converter can help you make the daily calculation, including conversion of area, density, energy, force, length, mass, power, pressure, speed, temperature and volume.
一个有用的单位转换器可以帮助您日常计算，包括面积，密度，能源，力，长度，质量，功率，压力，速度，温度和体积的转换。
Through numerical calculation, its proved that the fluid boundary greatly affects the value of added mass in many cases.
通过数值计算证明了物体的附加水质量不仅与物体形状有关，在一定条件下还受流体边界的影响。
Based on calculation of the shafting dynamics model of unit, the value of unbalance mass of runner correspond to the value of vibration quantity in the testing site was obtained.
根据建立的机组轴系动力学模型，计算得到了测试位置处振动量所对应转轮的质量不平衡量值的大小。
Calculation on plate and stiffened plate by using added mass method has great theoretical significance and practical value.
船体结构是由板和梁组合而成的，因此计算板和加筋板的附加水质量具有重要的理论意义和实用价值。
The conception of equivalent mass is introduced in the calculation of flight time and its physical meaning and mathematical implication are explained.
在飞行时间的计算中，引入了相当质量的概念，并说明了它的物理和数学的含义。
Both the effect of the variable effective mass of an electron and the spatially dependent dielectric constant are considered in the calculation.
在计算中，计入了电子有效质量和材料静态介电常数的空间依赖性。
Based on static analysis, the added mass and added damping of a buoy are calculated by three dimensional potential flow numerical calculation program.
本文在静力计算的基础上，应用三维势流理论数值计算程序计算浮标体的附加质量(矩)、阻尼系数和所受波浪力。
This paper supplies the method of calculating mass flow through the use of neural net work and succeeds in solving the uncertainty of parameter equations in calculation.
给出了基于神经网络的质量流量计算的方法，较好地解决了计算中参数方程的不确定性。
This article gives the calculation of the change of rotation of the earth and the shift of rotational axis due to the annual change of the mass.
本文提供了由质量周年变化而引起的地球自转及自转轴移动变化的计算。
The calculation of masses, centers of mass and moments of inertia of whole structure and components of rocket engines is a very important part of CAD and optimization of rocket engines and missiles.
火箭发动机整体结构及其部件的质量、质心位置和转动惯量的计算是火箭发动机及导弹的计算机辅助设计和优化问题中的重要组成部分。
In term of mass and energy conservation, the calculation method of simplified source of explosion was put forward;
根据质能守恒方程，提出了简化爆源的计算方法；
The calculation method of additional mass is investigated. The influence of additional mass on the dynamic characteristics of supporting structure is also obtained.
研究了附加质量的计算方法，分析了附加质量对水电站厂房支承结构自振特性的影响。
The calculation method of CG of locomotive is depicted. Then it is introduced how to determine and obtain secondary sprung CG, bogie mass CG and actual locomotive CG by four pivot point method.
阐述了机车重心的计算方法，介绍了如何采用四支点法测定和求得簧上总成重心、转向架总质量重心以及机车的实际重心。
In this paper the theory of stochastic medium widely used in mining industry is introduced into the calculation of surface and soil mass movements and deformation due to foundation pit excavation.
使用矿业工程中广为应用的随机介质理论和方法，计算深基坑开挖引起的地表及土体变形，并据此探讨深基坑边坡的稳定性。
It shows that it is not conservative to use the velocity of the center of mass as representative to conduct conventional calculation under some conditions.
这表明，以质心运动速度为代表的常规计算在某些情况下是不保守的。
The basic calculation will be defined on the basis of dynamic momentum, energy and mass equilibrium accounting.
通过动量、能量和质量衡算的方法可以建立其基本的计算式。
This paper gives two kinds of calculation methods of natural frequency of a mass-even elliptic column which oscillates in miniamplitude on a plane, obtains two formulas of natural frequency.
本文给出了匀质椭圆柱体在平面上作无滑动的微幅摆动之固有频率的两种计算方法，得到两个固有频率的计算公式。
Aimed at the general reason of cracks of mass concrete, the calculation of temperature and the analysis of crack were made.
针对大体积混凝土裂缝的原因，进行了温度计算和抗裂分析。
Adiabatic combustion temperature at various oxidizer mass flow rates and grain length is obtained by thermodynamic calculation and has a maximum as oxidizer mass flow rate increases.
利用热力计算得到了绝热燃烧温度与氧化剂流率和药柱长度的变化规律，绝热燃烧温度随氧化剂流率的增加存在一最大值。
The model includes the calculation of material balance, the vapor and liquid equilibrium compositions, the interfacial area of mass transfer, mass transfer rate.
模型包括了物料衡算、相平衡计算、传质面积计算、传质速率计算等。
The finite volume method was applied to the calculation, which is based on the fundament conservation laws of mass, momentum, species and energy.
采用有限容积法计算了质量、动量、组分与能量守恒方程。
The mass data is regressed to get the calculation formula of HTHS viscosity. At the same time, how to control the quality target of HTHS viscosity is discussed.
对本试验大量数据进行回归，得出HTHS粘度计算公式，同时对HTHS粘度质量指标的难易控制进行探讨。
A binary system also allows the calculation of the black hole candidate's mass.
这种双星系统同样也能够对黑洞候选体进行质量计算。
In addition, the calculation results between the lumped mass method and the method of the condensation of degree of freedom have been compared.
此外，本文还对堆聚质量法和自由度凝聚法计算的结果进行了比较。
Paper introduces a mathematical model for heat and mass transfer of a rotary regenerative heat exchanger as well as the calculation method of temperature field.
本文介绍了一种再生式换热器的传热传质数学模型和温度场的计算方法。这种换热器具有两段以不同材料做传热元件的转子。
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