半径的

In this paper gravitational mass defect in static and spherically symmetric metric discussed by Ghose and Kumar is extended to the case of charged, static and spherically symmetric metric (Reissner-NordstrSm metric).

本文把Ghosc和Kumer在球对称、静态引力场(Schwarzchild度规)中讨论的引力质量亏损推广到荷电、静态、球对称场(Reissner-Nordstrm度规)中，并计算了亏损以后的质量M随初始质量M_0、荷质比α和半径r的各种变化曲线。

Simulation of Loop domain near active site was carried out with the PROLOOP programm. The initial model was energy-minimized by the 500 steps of steepest descents method and 500 steps of conjugate gradients . The Vanderwal contacts were eliminated, and the energy of the static electric interation and hydrogen binding were adjusted

优化工作用PROLOOP程序，将活性中心附近LOOP前后的有关残基构象进行最佳拟合，并采用GROMOS软件包中的能量优化程序，作500步最陡速降法及500步共扼梯度法进行优化，彻底消除范德华半径重叠，并进行原子间静电和氢键作用的优化调整，最终得到UK-B链最优结构。

The results show that the retention time of solute in HPLC is controlled by the molecular radius or molar volume, the dipole moment, the sum of negative Mülliken charges LUMO and the interaction between solution and solute.

结果表明溶质在反相C18柱上的保留值由分子半径或体积、分子的偶极矩、分子的静电力及溶质与流动相分子相互作用力决定。

The two improving equations are used to estimate the volume and surface area of Muskmelon Cv. Huanghemi.

以黄河蜜甜瓜为试材，以排水法测定的体积和纸重法测算的表面积为依据，对椭球体体积与表面积计算公式进行了修正，建立了用纵、横半径估算厚皮甜瓜果实体积与表面积的新方法。

The oblateness in each time can be calculated according to the conjectured change of the radius, the quality and the angular velocity.

通过推测地球的半径、质量和角速度的变化量，计算出地球各个时期的扁率。

In recent years, domestic and foreign scholars have made particular progress onthe research of it.

近年来，对图的Laplace谱半径问题的研究，国内外都取得了一定的进展。

By means of successive overrelaxation technique and under the assumption that throat radii are of non-uniform distribution, our computer simulation shows some new features of VF in fractal lattice.

模拟结果表明，分维D随着粘滞比M的增加而减少，对于大的M和较平坦的半径分布，驱替状态存在粘滞和毛细指进共存区。

The VF in percolation cluster, based on the assumption that throat radii are of Rayleigh distribution, is investigated by means of successive overrelaxation technique. The fractal dimension for VF in percolation cluster is calculated.

本文还构造了具有不同占据概率的逾渗集团，基于喉管半径为Rayleigh分布的假设，借助于逐次超松驰技术研究了逾渗集团中的粘滞指进问题，并计算了其分维值。

First, the algrithm classify the measurement characteristics as point, line and surface which can be classified to conicoid and free surface. Then, this algorithm establishes the parametric equation according to various features. After that this paper brings forward the characteristic parameters utilising least square method with several characteristic points. Finally high precision probe radius compensation is carried out according to the features.

该算法首先把测量特征分为点、线、面3种基本特征（其中面特征又分为二次曲面和自由曲面），然后建立各种特征的参数方程，利用测量得到的少量特征点，采用最小二乘法拟合得到被测特征的参数，最后根据被测特征参数进行高精度半径补偿。

This study refers to the conditions of practical powder metallurgy manufacture process, and proceeds to experiments and gear precision measurements as well as investigation on the effects of two parameters, powders and pitch circle radius, on gear precision. The relationship between gear parameters and gear surface deviations was derived from the mathematical model for the involute helical gears and the analysis of gear surface deviations.

本论文将采用实际上粉末冶金螺旋齿轮的制程条件，进行试作实验与齿轮精度的量测，以探讨粉末及螺旋齿轮之节圆半径这两个制程参数对於齿轮精度的影响；同时应用齿轮创成原理所推导之螺旋齿轮数学模式，配合齿面变异分析，求得齿轮设计参数改变量与齿面变异量之关系。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。