plastic lens system

例句：

1. 1. Thenew camera has a plastic lens system thatallows for easy adjustment of focus.
   这款新相机有一个塑料透镜系统，可以轻松调整焦点。
2. 2. The doctorused a plastic lens system tohelp the patient see clearly.
   医生使用了一个塑料透镜系统来帮助病人看得更清楚。
3. 3. The plastic lens system in themicroscope is designed to magnify smallobjects.
   显微镜中的塑料透镜系统设计用来放大小物体。