距离度量的任何定义都必须满足一些可以度量的属性；例如，距离永远不可能为负。
Any definition of a distance metric has to satisfy a handful of properties to qualify; for example, a distance can never be negative.
一个是正态分布下降是依据中间部分转角处到平面距离的负指数。
One is that a normal distribution falls off according to the negative exponential of the square of the distance from the mean.
采用零点、距离位移曲线和生长指数等定量分析方法，讨论了断裂的构造负反转过程。
By means of the null point, growth index analysis and displacement distance plot, the authors discussed the process of negative structure inversion.
但是，由于非线性自相位调制效应的影响，在其它参数相同条件下，正色散时的ISI限制距离比负色散时要长得多。
But for the influence of self phase modulation, the ISI limited distance of positive dispersion is much longer than that of negative dispersion.
上行离子主要分布在近地空间，其通量密度相对于地心距离呈负梯度。
The ionospheric up flowing ion mainly distributes in the near geo space and its flux has a negative gradient versus geo center distance.
提出一种用零序分量做动作量，负序分量做制动量的综合序分量接地距离继电器。
An earth fault distance relay based on the combined sequence components is presented.
用该法在浅海负梯度和均匀层情况下，计算了远程混响和回波、混响比的距离、深度结构。
The range and depth dependence of the long-range reverberation and echo-reverberation ratio were calculated for the cases of negative gradient and homogeneous layers.
通过镜组移动改变正、负傅里叶变换系统的距离，用软件比较CCD上两个波峰的间隔是否变化来对CCD进行定焦。
When the distance between positive and inverse Fourier transform system changes, the CCD is adjusted to the focal plane by variable value of interval between two peaks on CCD with computer.
弹丸初始位置定义为弹丸前端与线圈末端间的距离，习惯上把其处于线圈外时效率峰值定义为负。
The pill initial position efficiency peak value is defined as the distance between pill front end and coil end.
结果表明扩散系数和扩散距离都随着负衬底偏压的增大而增大。
The results showed that diffusion coefficient and diffusive distance increased with raising of negative substrate bias.
负序距离继电器的行为与变压器绕组的接线无关，所以它是作为变压器后备保护的距离继电器的最佳选择。
The negative sequence distance relay gets free from the winding connection of the transformer. So it is the best choice to use the kind of the distance relays for the transformer backup protection.
个体对未来自我行为的正性期待和负性回避倾向可能是自我行为表征缺乏距离效应的心理机制。
It was discussed in term of individual' s expectation of future positive behaviors and avoidance of negative behaviors.
结果表明扩散系数和扩散距离都随着负衬底偏压的增大而增大。
The deposition rate increases with the increasing of bias voltage pressure.
在本文中，我们主要研究具有非负曲率完备非紧流形的体积增长与闭测地线及距离函数临界点一些关系。
The paper gives a simple version and progress of the open Riemannian manifolds with nonnegative Ricci curvature and large volume growth from 1990.
在本文中，我们主要研究具有非负曲率完备非紧流形的体积增长与闭测地线及距离函数临界点一些关系。
The paper gives a simple version and progress of the open Riemannian manifolds with nonnegative Ricci curvature and large volume growth from 1990.
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