near field pattern of laser

例句：

1. 1. The near-field pattern of the laser is crucial for accurate measurements.
   激光的近场模式对于精确测量至关重要。
2. 2. In near-field patterning, the laser beam is focused to a very small spot on the surface.
   在近场模式中，激光束被聚焦到一个非常小的表面斑点上。
3. 3.The near-field pattern can be used to detect and track objects in real-time.
   近场模式可以用来实时检测和跟踪物体。