查询词典 binary coded decimal

Targets are extracted from the images according to their size, shape, intensity, etc. An improved method to identify every coded target is proposed. The gray scale centroid algorithm is applied to get subpixel locations of both uncoded and coded targets.

该算法首先根据标记点的尺寸、形状、灰度变化及位置分布等特征提取目标；然后利用非编码元与编码元的不同形状与灰度特征，提出一种改进的编码元自动身份识别方法，同时实现非编码元与编码元的分类；最后采用质心法进行标记点的精确定位，达到亚像素精度。

The invention discloses a digital good transaction system and the method. It mainly carries on coding process to at least one digital good in a content downloading center into a coded digital good, and the coded digital good will be transmitted to at least one content downloading station with real memory transmission path, when the consumer selects a digital good, the user can uses a content downloading card into a content downloading station, uses a reality transmission path to store the digital good to be purchased, and uses a network transmission wire to connect the content downloading center, the center incriminates the card number in order to generate a card number decoding data, and download the decoding data into a content downloading card, when the consumer want toe buy a digital good, the content can be downloaded into a content card reader, and the reader incriminate the card number to reduces the decoded data and the digital good, in order to generate the digital good which can be read and used.

本发明公开了一种数字商品交易系统及其交易方法，其主要是将至少一数字商品在一内容下载中心进行加密处理以成为一加密数字商品，而加密数字商品将以实际的储存器传递线路以直接送到至少一内容下载点中，当消费者选定一欲购买数字商品时，可持一内容下载卡至其中一内容下载点，利用一实体传输线路直接储存所欲购买的加密数字商品，并藉由一网络传输线路以连接内容下载中心，内容下载中心将根据卡号识别码以产生一卡号解密资料，并将卡号解密资料下载至内容下载卡，当消费者欲使用欲购买数字商品时，即可将内容下载卡置入一内容卡片阅读机中，而内容卡片阅读机将根据卡号识别码以还原卡号解密资料及加密数字商品，以产生可供读取使用的数字商品。

Is written as a recurring decimal, what is the 25th digit after the decimal point

写成循环小数时，小数点后第25位数字是甚麼？

A group of four, i.e., four pulses used to express a decimal digit or a hexa decimal digit.

4个数位一组，用以表示十进制或十六进制中的一位数字的4个脉冲。

Written as a recurring decimal, what is the 2002nd digit after the decimal point

写成循环小数，小数点后第2002个位的数字是甚麼？

136 Chapter 1 The History and Future of Computers 3.1.4 Conversion From Decimal Converting from a Decimal Fraction.

转换十进制小数部分转换进制小数部分是用基数乘来完成的。

Decimal divided by fraction, When there's a multiple relationship between decimal and fraction, we can use reduce fractions.

小数除以分数，当小数与分数的分子有倍数关系时，可用直接约分法。

129 Chapter 1 The History and Future of Computers 3.1.2 Positional Notation In the decimal system, positions to the right of the decimal point have negative powers.

在十进制系统中，对于十进制小数点右边的位，它的幂为负数。十进制小数点右边第一位数的值为 10-1 ，或 0.1 。

10 Chapter 3 Number Systems and Boolean Algebra 3.1.2 Positional Notation In the decimal system, positions to the right of the decimal point have negative powers.

在十进制系统中，对于十进制小数点右边的位，在十进制系统中，对于十进制小数点右边的位，它的幂为负十进制小数点右边第一位数的值为10-1，或0.1。

Floating-point numbers are defined as any number that contains a decimal fraction and that can be expressed in decimal or scientific notation, as shown in Listing 1.5

浮点型数值像任何包含一个小数的数那样定义，并且能用十进制或是科学计数法表示。如Listing 1.5所示

We are in a good position to meet your requirements.

我们完全可以满足你方的需求。

We are all pervade d with a sense of disaster.

我们普遍有大祸降临的感觉。