1550s, "person who examines critically," agent noun from scan (v.). From 1927 as a type of mechanical device, in mid-20c. use especially of radar and medical devices; later of computer accessories.
实用例句
1. The scanner will save risk and pain for patients.
扫描仪将使病人免遭风险和痛苦。
来自柯林斯例句
2. The picture is digitised by a scanner.
对照片进行扫描，实现其数字化。
来自柯林斯例句
3. The identity cards are examined by an electronic scanner.
用电子扫描器来检验身份证。
来自《权威词典》
4. Using a scanner, we can look at the unborn foetus.
我们用扫描器可以观察未出生的胎儿.
来自《简明英汉词典》
5. Import your scanned images from the scanner and save as a JPG file.
