半径的

Quantum dots are semiconductor nanocrystals with physical dimensions smaller than the exciton Bohr radius.

量子点是指半径小于或接近于激子玻尔半径的半导体纳米晶粒。

In chapter four, we prove that a complete open Riemmannian manifold with Ricci curvature negatively lower bounded is of finite topological type provided that the conjugate radius is bounded from below by a positive constant and its excess is bounded by some function of its conjugate radius.

第四章，我们证明了对于Ricci曲率具负下界的完备开Riemannian流形，当其共轭半径有正下界且它的Excess被其共轭半径的某个函数所界定时，它就有有限拓扑型。

The radius is half of the diametre ,and the diametre is two times the radius.

半径是直径的一半，直径是半径的2倍。

In order to deal with the irregular cross section of the milling cutter, the cutter effective cross section coefficient and effective radius coefficient are introduced to determine the inherent frequency of cutters for various cantilever lengths and radii.

针对铣刀刀杆截面形状不规则的特点，引入截面系数和有效半径系数的概念，提出了不同悬臂长度和半径的铣刀刀杆固有频率计算方法。

In this paper, an inequality concerning an interior point , the circumradius and inradius of an n-dimensional simplex is obtained.

本文获得涉及n维单形内点、外接球半径与内切球半径的一个几何不等式，它蕴含了n维Euler不等式。

Magnetosphere, the magnetic equator the Earth's surface under the four radius from the center of the earth 2 ~ 10 Earth radii in the region, the distribution of energy for the dozens to hundreds of thousands of electron volts of protons.

磁层内，磁赤道面上下4个地球半径之内，距离地心2～10个地球半径的区域内，分布有能量为几十至几十万电子伏的质子。

The same radium of the two platform, one angle is 120°, another is 0°, with the change of the radium, the error prominency factors has little change.

两平台半径相等，且分支末端两两交于一点时，平台半径的大小对误差放大因子影响不大。

At the same time,a tension stress is applied on theγ′phase interfaces along the direction parallel to the stress axis,which results in the lattice expansion ofγ′phase to trap the Al,Ta atoms with the bigger radius.This brings out the accumulation of the solute atoms to form the N-type rafted structure.Al,Ta atoms with bigger radius diffuse to the {100} plane to form the linked bond of the heterogeneous atoms and the stable stacking mode,this is a main reason of promoting the transformation ofγ′phase into the N-type rafted structure.And the change of the strain energy density in different interfaces of the cubical-likeγ′phase is thought to be the driving force of the elements diffusion and theγ′phase directional growth during creep.

拉伸蠕变期间，类立方γ\'相中与施加应力轴垂直的界面受水平切应力，使晶格收缩可排斥较大半径的Al、Ta原子；与应力轴平行的界面受拉伸张应力，使晶格扩张可诱捕较大半径的Al、Ta原子，由此引起的原子偏聚形成γ\'相是自由能降低的过程；其中，较大半径的Al、Ta原子扩散迁移至{100}晶面，形成异类原子结合键及稳定的堆垛方式，是促使γ\'相形成N-型筏状结构的主要原因；而γ\'相不同界面的应变能密度变化是元素扩散及γ\'相定向粗化的驱动力。

Some primary metering grooves with different curvature radiuses and geometrical dimensions were designed,and the hydraulic characteristics of them were all tested Based on the experiment results, different flow characteristics of them were obtained The great differences between the experimental results and the conventional theoretical predictions were found by the comparison between them Under the condition of this experiment, the critical Reynolds is 1000～1200, and is diminished as the decrease of th...

为了在设计层板发汗冷却推力室时选择合适的一次调节通道，对不同曲率半径、不同几何尺寸的一次调节通道进行了流阻试验，得出了不同几何尺寸的一次调节通道的流动特性。试验结果与经典的层流理论计算结果之间存在较大的差异。试验表明，一次调节通道的临界雷诺数随曲率半径的减小而减小，摩阻系数随曲率半径的减小而增加，并得出了相应条件下的一次调节通道摩阻系数的修正关系式，在层流范围内能较好地反映一次调节通道的流阻特性

The strainpath analysis indicates that the deformation of the sheet at the fracture location changes into the plane-strain mode from the stretch mode as the die corner radius is further increased from the optimum value, resulting in an early fracture since the plane-strain mode has a lower forming limit as shown in the FLD of Fig.

当一钢模角落半径是进一步的增加时候调查揭露 formability 是改良的如一钢模角落半径直到最适宜的价值增加，而且变得更更坏地。strainpath 分析指出张的毁坏在破碎位置变化是进入如一钢模角落半径的来自可伸缩的模态飞机-紧张模态之内比较远的从最适宜的价值增加，造成一个早的破碎因为飞机-紧张模态有如图 2 的 FLD 所显示的一个比较低的形成界限。

I'm gonna go pack my regular, long bathing suit.

我要去打包我那不起眼的超长泳裤

Random number generators are used in many areas, with the improvement of the computational ability of the computer.

随着计算机计算能力的不断提高，随机数发生器在许多领域有了更加广泛的应用。