| 单词 | alphanumeric characters |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔dot matrix〕A dense grid of dots or pins used to form alphanumeric characters or designs, as by some computer printers and visual display units.点阵：用于构成混合字符或图形的密集点网格或密集针网格，如用于计算机打印机及图象显示器美国传统〔print bar〕A mechanism in a printing device that carries the template of the final form of the alphanumeric characters to be printed.打印杠：印刷设施中的机械装置，用于支起要印刷的字母数字符号最后形式的模板美国传统 |
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