有效面积

Analysed existing dactylogram to collect detailed rules, commutation, dry to valid area, gray scale the respect such as deflection of wet, position undertook be discussinged deep to the influence of dactylogram picture quality, the is based on brim detail to nod information dactylogram picture quality that offers a kind to improve evaluates a method, the dactylogram image to be being collected undertakes quality is evaluated, the pretreatment that is image provides the dactylogram picture with higher quality.

分析了现有的指纹采集细则，对有效面积、灰度变换、干湿、位置偏移等方面对指纹图像质量的影响进行了深入的探索，并提出一种改进的基于边缘细节点信息的指纹图像质量评估方法，对采集到的指纹图像进行质量评测，为图像的预处理提供质量较高的指纹图像。

In this paper, the preparation technology for highly resistively GaAs surface nuclear radiation detector of thickness 300-800μm and an active area of 30-113mm2have been described and experimental measurement results are given.

本文介绍了厚度为300μm—800μm，有效面积为30—113mm2的高阻GaAs单晶材料制备的核辐射GaAs 探测器的研制工艺，测试结果。

In addition, increasing the effective area of fiber also helps to reduce the impact of SRS on the system.

此外，增大光纤的有效面积也有利于减少SRS对系统的影响。

Antenna effective area is usually expressed in square meters.

天线有效面积的单位是平方米。

The effective area is an important parameter of single-mode fiber.

光纤的有效面积是评价单模光纤性能指标的一个重要参数。

Tracking testing found : natural lighting effective area of 600 square metres.

跟踪检测发现：自然采光有效面积600平方米。

Furnace effective area of 5,300 × 26300mm, the biggest heating capacity of 60 tons / hour.

炉内有效面积 5300×26300mm，最大加热能力60吨/小时。

Very recently, a new compact PS-PMT, R7600-C12, has been developed. The PS-PMT has 11 stages of metal dynode channel dynodes and 6 +6 crossed plate anodes in a 25. 7mm square×20mm high metal can package, where the effective area is 22×22〓.

研究和设计了一种新型紧凑型的PS-PMT—R7600-C12.R7600-C12具有11级倍增级，底面积25.7〓高度20mm的金属封装，X、Y两个方向上都有6个交叉平面阳极，有效面积为〓。

The system for effective area measurement of laser spot on target plane was designed based on the definition of effective area.

从激光光斑有效面积的定义出发，采用CCD图像摄取技术，设计了一套激光光斑有效面积测量装置。

The algorithm firstly selects effective area,the extent of wet and dry,position offset as estimation factor,considering all estimation factors in order to obtain the total quality point,secondly the ultimate estimation result is obtained based on above,finally isolated block is removed by calculating the area of the remaining fingerprint.

该算法首先选取指纹图像的有效面积、干湿程度、位置偏移量作为评价因子，然后综合考虑各种评价因子求取总的质量分得到最终的评价结果；最后通过计算面积割除孤立的残留指纹。

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明：这可不是一个一般的对话框，它是用图片作为背景的对话框，非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份，帮助我，我的面具将成为我的目的。