cone type collimator

例句：

1. 1. The cone type collimator is used to focus the beam of light onto a small spot on the screen.
   锥形准直器用于将光束聚焦到屏幕上的一个小点上。
2. 2. The cone collimator is essential for accurate measurements in radiography.
   锥形准直器在放射摄影中对于精确测量至关重要。
3. 3. The cone collimator system was designed to improve the resolution of medical imaging devices.
   锥形准直系统被设计用来提高医疗成像设备的分辨率。