confocal optical resonator

例句：

1. 1. The confocal microscope is used to image cells at the nanometer level.
   共焦显微镜用于在纳米级别成像细胞。
2. 2.The confocal scanner is a powerful tool for 3D imaging.
   共焦扫描仪是进行三维成像的强大工具。
3. 3.In confocal microscopy, light from a laser passes through a small aperture and focuses on a sample.
   在共焦显微术中，来自激光器的光线穿过一个小孔，聚焦在样品上。