轮廓

In this thesis, a spatial error model of multi-axis NC machine tools is presented, and a feasible method is improved for measuring its fundamental error component.

本文围绕五轴联动数控机床的加工精度，从几何误差补偿到伺服控制再到轮廓误差控制，进行了多方位的理论研究。

The correctness and validity of the new idea about contour error control are verified by experiment result.

实验结果验证了这种新型轮廓控制思路的正确性和有效性。

An approaching method to evaluate profile error of free curve.

逐次逼近法评定自由曲线的轮廓度误差。

At last, a set of Chinese characters recognition system with reaction are constructed, based on and using the error estimation approach of Chinese characters outlines feature.

最后，给出了一种基于汉字图形轮廓特征的误差估计方法，并利用误差估计初步建立了一套带有反馈的汉字识别系统。

In silicon deep reactive ion etching using inductively coupled plasma etcher,a narrow trench with a width of several micrometers usually shows positively tapered profile, which means that the width of the etched trench decreases with the progress of etching depth.

利用自感应耦合等离子蚀刻机进行硅深层反应离子刻蚀，得到了几微米宽的狭槽，其轮廓通常为正锥形，即蚀刻槽的宽度随着蚀刻深度的增大而减小。

The outline of the Chinese etymon"口"is similar to the English letter"D".

中文字根"口"，其笔画轮廓略相似于大写的英文字母D。

With the experimental data, operation time of contour extraction of binary image represented by rectangle NAM is 0.31 to 0.86 times of that of image represented by matrix, operation time of Euler number computing of binary rectangle NAM image is 0.11 to 0.63 times of that of the pattern algorithm, operation time of connected component labeling of binary image represented by rectangle NAM is 0.08 to 0.37 times of that of image represented by matrix, 0.05 to 0.12 times of that of image represented by quadtree.

实验数据表明，采用矩形NAM表示的二值图像轮廓提取算法的执行时间是矩阵表示的0.31至0.86；矩形NAM表示的欧拉数计算执行时间是模板算法的0.11至0.63；矩形NAM表示的连通区域标记算法执行时间是矩阵表示的0.08至0.37，四元树表示的0.05至0.12。

The complexity of connectivity search at the worst situation is O, N is the side length of image. The complexity of connectivity ergod is O, N_q is the number of sub-pattern instances.With the connectivity operation of sub-pattern instance, contour extraction, Euler number computing and connected component labeling of binary rectangle NAM image are researched.

以子模式实例的连通关系处理算法为基础，分别研究了基于矩形NAM图像的二值图像轮廓提取、欧拉数计算、连通区域标记等图像运算，给出了具体的算法和分析，并将其与流行的基于其它图像表示的同类相关运算进行了比较。

In type Ⅱ, the surface ornamentation is formed by both perispore and exospore.

孢子钝三角形，三裂缝；周壁较薄，由周壁和外壁共同形成表面轮廓，表面具疣状或颗粒状纹饰。

In type Ⅲ, the perispore is thin and the surface ornamentation is formed by the exospore.

孢子钝三角形，三裂缝，沿裂缝两侧各有一脊状隆起或瘤状纹饰；周壁薄，由外壁形成表面纹饰的基本轮廓；具赤道环、近极脊和远极脊。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。