electronic lens focusing

例句：

1. 1. The camera uses an electronic lens to capture high-quality images.
   相机使用电子镜头来捕捉高质量的图像。
2. 2. The scientist focused his attention on the problem at hand.
   科学家集中注意力于眼前的这个问题。
3. 3. The engineer used a laser beam to focus the light onto a target.
   工程师使用激光束将光线聚焦到目标上。