three-digit

To understand what these pieces mean, consider an optical character recognition system that scans glyphs printed on paper and converts them into three-digit decimal numbers.

要理解这些部分的具体含义，请考虑一个光学字符识别系统，该系统扫描纸张上的符号并将它们转换为3位的十进制数。

METHODS: The experiment was conducted in the laboratory of Electrical Information Institute, Lanzhou University of Technology from April to May 2006.Twenty healthy male college student volunteers were selected for mental fatigue experiment of mentally adding and subtraction operation with three-digit numbers for 3 hours.

方法：实验于2006-04/05在兰州理工大学电子信息研究所实验室进行。选择20名身体健康的男性大学生志愿者，进行连续3h的3位随机数加减运算的精神疲劳实验。

But a 2009 study by Travis Ng, Terence Chong and Xin Du at the Chinese University of Hong Kong found that for three-digit license plates, including a lucky number such as 8 brought a price premium of 95 percent.

不过，香港中文大学的吴嘉豪（Travis Ng）、庄太量（Terence Chong）和杜新（音）2009年发布的一项研究发现，包含8等吉利数字的三位数车牌会溢价95%。