Noun:

1. someone who scans verse to determine the number and prosodic value of the syllables

2. an electronic device that generates a digital representation of an image for data input to a computer

3. a radar dish that rotates or oscillates in order to scan a broad area

4. a radio receiver that moves automatically across some selected range of frequencies looking for some signal or condition;

   "they used scanners to monitor police radio channels"
   

digital scanner数字扫描机

electronic scanner电子扫描器

image scannern.图像扫描仪

1. The card reader is compatible but the scanner is incompatible with my computer system.
   这个读卡机与我的电脑系统兼容，但扫描机不兼容。
2. Electronic dot generation The ability of an output scanner to generate half-tone dots directly on the output medium in a variety of screen rulings and forms.
   电子传发网点在扫描机的输出介体上能以多种不同的网点形状和网线数目直接造成半色调网点的能力。
3. This picture has been digitized by a scanner.
   这幅图已由扫描仪进行了数字化。
4. No driver is found for your scanner.
   没有为扫描仪找到驱动程序。