距的

Given a planar point set,the moving least squaremethod is adopted to denoise and resample it so that the resulting point set is with low noise and uniform sampling density.Then the reliable signed distance field of the preprocessed point set is constructed by using the Level Set method.Finally,an algebraic B-spline function is adopted to fit the signed distance field by solving a linear equation system.

首先给定一个表示封闭曲线、可能带有噪音且分布不均匀的平面点云，采用移动最小平方(moving least square，简称MLS)方法对点云去噪、重采样，得到一个低噪音、分布均匀的"线状"点云，再通过Level Set方法建立该"线状"点云的离散几何距离场，最后用一个代数B-样条函数光顺拟合该离散距离场，代数函数的零点集即为重建曲线。

And some results on the isometries and equivalences of quantum codes are presented, one of which generalizes one of results of Bogart et al..

研究了量子纠错码的等价性和保距同构，推广了Bogart等人的一些概念，并给出若干基本引理和定理，这些结论对进一步研究量子码的等价性和保距同构是非常有用的。

The shape of the fault He125 in plane was illustrated by using striking, rotation and angle of branch fault. And its profile features include fault horizontal slip, vertical slip, and dip, fault throw and growth index were interpreted by selecting precise points. Based on these features, 3-D structural elements, fault plane system and structural style were studied.

从走向、转度、分支断层间的夹角三个要素入手阐明断层平面形态，通过精确取点利用三角函数解释断层的水平滑距、垂直滑距、倾角、生长指数、古落差等剖面几何要素，研究了河125断层的三维结构要素、断面体系及构造样式。

This paper presents MMF of a five-phase induction motor with concentrated and full-pitch windings by means of fourier analysis and winding function , which indicates theoretically that the five-phase induction motor with concentrated and full-pitch windings can provide more electromagnetic torque and higher torque density than others.

本文运用傅里叶分析和绕组函数的方法，推导了集中整距绕组五相感应电动机的磁动势，得出集中整距绕组五相感应电机能更好地增加电机的电磁转矩、提高转矩密度。

The case of a bus route in Qinghuangdao was studied. The analysis results show that the efficient way to improve bus accessibility is to keep bus headway not more than 5 min, so that the optimum bus-stop spacing is below 600 m no matter how much the bus passenger demand is. But on condition of higher bus headways, optimum bus-stop spacing should be in the range of 900 to 1400 m and the bus accessibility would drop more remarkably compared with lower bus headways.

以秦皇岛公交线路为实例，结果显示提高公交可达性的有效途径是使用不大于5min的低发车间隔，无论公交客流量大小，最优公交站距都可以保持在600m以下；而对高发车间隔，公交站距在900~1400m才能获得较高的可达性，而相比低发车间隔，公交可达性显著下降。

The hoop tension force is axisymmetrical about the tension direction and increase from the top position to both sides. The distribution of hoop tension force is even with small friction coefficient, but will increase rapidly from top to side positions, which subsequently result in necking and fracture near the edge of gauge section.

结果表明：采用正压力线性变化假设所得的切向力分布规律与拉伸实验结果吻合较好；切向力关于拉伸方向呈轴对称分布，从正上方到两侧逐渐增大；当摩擦系数较小时，切向力分布较均匀，但当摩擦系数较大时，切向力从正上方到两侧迅速增大，试样的颈缩和断裂发生在标距段内靠近标距边缘的位置。

The autoaligment instrument and accuracy turntable with digital display are used to detect the step angle after 32 subdivision, and the experiment results are given, the mean-square error of step angle after 32 subdivision is less than 3.7%.

为了检测32细分后的步距角，采用了自准直仪加精密数显转台的光学测量方法，并给出了实验结果，32细分步距角的均方误差不大于3.7％。

Curve and the x, y-axis intersection (a, 0),(0, b) where a curve is called the intercept in the x-axis; b is called the curve y axis intercept .

曲线与x、y轴的交点（a，0），（0，b）其中a叫曲线在x轴上的截距；b叫曲线在y轴上的截距。

Curve and the x, y-axis intersection (a, 0),(0, b) where a call in the x-axis intercept curve; b is called the curve y axis intercept .

曲线与x、y轴的交点（a，0），（0，b）其中a叫曲线在x轴上的截距；b叫曲线在y轴上的截距。

But they are different in survey grid. For example, in detailed investigation, the survey grid of 20～50×100～200m is better for metallic ore exploration, and 250～400×500～750 is better for oil-gas exploration.

共同点是最佳取样深度均为60～80cm，用于分析烃类的最佳富集粒度均是40～120目，差异点主要网密度，以详查评价为例，金属勘查中的点线距以20～50×100～200米居多，而油气勘查中的点线距以250～400×500～750米为主。

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。