focus-compensating pentode

例句：

1. 1. The new design of the product is a focus-compensating pentode that can adjust the brightness according to the user's needs.
   该产品的新设计是一种可以调整亮度以适应用户需求的补偿焦点五极管。
2. 2. The engineer used a focus-compensating pentode to improve the resolution of the camera lens.
   工程师使用一种补偿焦点五极管来提高相机镜头的分辨率。
3. 3. The research team developed a focus-compensating pentode that could detect and track objects in low light conditions.
   研究团队开发了一种补偿焦点五极管，可以在低光条件下检测和跟踪物体。