raster scanning

例句：

1. 1. The raster scanner is used to create high-quality images.
   光栅扫描仪用于创建高质量的图像。
2. 2.In medical imaging, raster scanning is used to capture detailed images of the body.
   在医学成像中，光栅扫描用于捕捉身体详细的图像。
3. 3. The raster scanner was used to detect defects in the metal before it was sold.
   光栅扫描仪被用来检测金属中的缺陷，然后再出售。