掌子

Feature of principal lines spatial distribution: detect the principal lines through edge detecting technology, and then divide the image of palmprint into blocks with same dimension, compute the mean and variance as feature; Feature of palmprint direction: divide the image into sub-images; compute the max angle of projection and coordinate of each sub-image, which stand for the direction and location of the line on the palm; Feature of moment invariants: compute the moment invariants of each sub-image and the whole image as feature.

掌纹主线空间分布特征：利用边缘检测技术检测出掌纹的主线，将图像分割成相同大小互不重叠的子图，提取每一个子图的均值和方差作为特征；掌纹线方向特征：将图像分成不重叠的子图，利用Radon变换求出每一个子图的最大投影角度和坐标，也就是子图内掌纹线的方向和位置，构造特征向量；掌纹不变矩特征：提取图像整体和分割后的子图的不变矩作为特征。

This paper proposed to use elliptical Gabor filter with least redundancy to convolute with palmprint,sub-bands with 4 scales and 6 directions are obtained,calculate the average and deviation of every sub-band,48D texture feature is extracted,and normalize the 48D feature in the whole database,finally use distance of absolute value to measure the difference between two feature vector.The result shows the arithmetic proposed by this paper has a little high retrieval accuracy.

本文采用最小冗余度的椭圆Gabor滤波器组对掌纹图像滤波，得到4个尺度6个方向的子带，计算每个子带的均值与方差，得到48维的纹理特征，在整个数据库中对48维特征进行归一化，最后采用绝对值距离衡量不同特征向量间的差异。

Long Hill, the first palm Chengshan, the former Shan, Ying Pun and the top Cotoneaster mountains in the central mountain peak.

龙首山的成山掌、前山，营盘顶和栒子山为中部山系高峰。

Ginkgo biloba, large deciduous trees, gymnosperms, dioecism, Billing Division of the single genus, also known as ginkgo, maidenhair tree, duck foot son,tree is an ancient and magical tree species, for China unique.are relict plant Ginkgo biloba, known as the "living fossil."

银杏，落叶大乔木，裸子植物，雌雄异株，单科单属，又称白果、公孙树、鸭脚子、鸭掌树，是一种古老而神奇的树种，为中国所特有。银杏是孓遗植物，被称为"活化石"。

Therefore, the dual eigenspace method for automatic palmprint recognition was proposed using the subspace method of pattern recognition.

在此基础上结合子空间法模式识别理论，提出了双子空间掌纹自动识别方法。并用双子空间对各类样本的空间分布进行了更加精细的刻画。

Replied the son of Lycaon, take the reins and drive; if we have to fly before the son of Tydeus the horses will go better for their own driver.

还是由你执缰，埃内阿斯，使唤你的驭马。万一我们打不过图丢斯之子，不得不败退时，由熟悉的人制掌，驭马会把弯翘的战车拉得更快更稳。

Later, when he discovered that Misty was in fact the Emperor, and they were constantly tumbling around together, he was afraid that the dagger might slip out of his boot; besides, it was strictly forbidden on pain of death to carry a knife in the Palace, with the exception of the guards who were on duty.

他在杀了小桂子之初，靴筒中带得有匕首，后来得知小玄子便是皇帝，和康熙对拆掌法，时常纵跃窜跳，生怕匕首从靴中跌了出来，除了当值的带刀侍卫，在宫中带刀那可是杀头的罪名，就此不敢随身再带了。

By the half-analytic calculation method, the paper analyzed the tunnel circumjacent constringency and vault settlement with time and alteration depth of tunnel face, the relevant constringency model was built, and the reasonable second support time for hard and soft rock tunnel were proposed.

中文摘要：利用半解析计算方法，考虑了隧道周边收敛和拱顶下沉随时间和掌子面推进距离的变化情况，建立了相关的收敛模型，并由此给出了硬岩及软岩隧道中的二衬的合理支护时机，并结合工程实际对Ⅱ、Ⅲ、Ⅳ、Ⅴ级围岩进行了周边收敛结果的最小二乘拟合计算。

The key of maintaining the tunnel stability lies on how to deal with the advance core soil ahead of working face, which is obtained on basis of analysis on the problems in high speed railway tunnels with big crosssections in soft surrounding rock or soil. Fullface prereinforcing method by fiberglass bolts can enhance the equivalent rigidity of the advance core soil and control the deformation of the advance core soil, so that arch effect can play its role naturally and assure the excavation safety.

总结分析了目前高速铁路大断面软弱围岩或土质隧道施工中存在的问题，认为如何处理好掌子面前方的&待挖核心体&是控制此类隧道整体稳定性的关键，运用沿隧道纵向全断面预加固的易切削玻璃纤维锚杆来提高&待挖核心体&的等效刚度，控制&待挖核心体&的变形，使得隧道周边的拱效应能自然发挥作用，可以保证隧道能够全断面安全、顺利开挖掘进。

The Mont Cenis was bored from two different headings, one in France and one in Italy.

塞尼山隧道是从两头的掌子面同时掘进的。一头在法国，一头在意大利，最后在中间汇合。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。