beam crossing angle

例句：

1. 1.The beam crossing angle is crucial for the design of optical systems.
   光束交叉角对于光学系统的设计至关重要。
2. 2. The engineer measured the beam crossing angle to ensure the accuracy of the measurement.
   工程师测量了光束交叉角，以确保测量的准确性。
3. 3. The beam crossing angle affects the performance of the laser system.
   光束交叉角影响激光系统的性能。