scanner selector

例句：

1. 1. The computer has a built-in scanner that can read barcodes.
   这台电脑内置了一个扫描仪，可以读取条形码。
2. 2. The scanner is used to capture images from the camera.
   扫描仪用于从相机捕获图像。
3. 3.The company's new scanner will be able to recognize and digitize documents more quickly.
   该公司的新扫描仪将能够更快地识别和数字化文档。