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。
Now I'm going to do the same calculation in the center-of-mass frame.
我们会做同样的计算,在质量重心体系中。
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 results show that the advanced material and design can decrease the vehicle dry mass and its sensitivity to the design margin.
计算结果表明，先进的材料和设计能降低运载器的干质量，并使运载器干质量对设计余量的敏感性降低。
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。
The calculation of mass combustion rate directly reflects the effects of turbulent on combustion.
在质量燃烧率的计算中，直接反映了紊流对燃烧过程的影响。
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。
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。
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。
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。
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。
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。
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。
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。
The theoretical analysis and numerical calculation are carried out for turbulent convection mass transfer in heated tubes with consideration of internal mass sources under constant properties.
在常物性条件下，考虑有内部质量源时，对水中的金属腐蚀物杂质在加热管道中的紊流对流传质进行了理论分析和数值计算；
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。
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。
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 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。
The level of mass urine iodine evaluated by the original standard contrast calculation method is equal to the standard curve and the current contrast calculation method 64 1% and 63 4% respectively.
用原标准对照计算法评价的群体尿碘水平只相当于标准曲线和现标准对照计算法的64.1%和63.4%。
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。
The general reason of cracks of mass concrete is introduced, it gives the calculation of temperature and the analysis of crack.
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。
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。
The calculation result validated the correctness, reliability and the ability which to deal with the mass system's disperse reactive power optimization of the algorithm this paper put forward.
计算结果验证了本文所提出的算法的正确性、可靠性以及处理大规模系统离散无功优化问题的能力。
It could detect head rice and broken rice automatically from mass rice. A calculation model was established based upon a lot of experiments on rice shape.
在对大米粒型进行大量实验研究的基础上，建立了从群体米样中分割整精米的计算模型。
This paper describes the principle, calculation method, technical index, requirements for operational environment, daily maintenance and troubleshooting methods of ZC-202 13C mass spectrograph.
概述了ZC-202型13C质谱仪的工作原理、计算方法、技术指标、工作环境要求以及一些维护常识、故障排除的方法。
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。
In this paper, a modified method was proposed to avoid the iterative calculation for the method of mass-exchange network with multiple impurities deficit diagram.
针对多杂质质量交换网络赤字率图解法在使用时需多次迭代因而计算复杂的缺点，提出了改进方法。
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