test pattern beam

例句：

1. 1.The test pattern beam was used to measure the distance between the two objects.
   测试模式光束被用来测量两个物体之间的距离。
2. 2.The engineer used the test pattern beam to simulate the real-world environment for testing purposes.
   工程师使用测试模式光束来模拟现实世界环境进行测试。
3. 3.The test pattern beam was crucial in determining the accuracy of the measurement device.
   测试模式光束在确定测量设备的准确度方面至关重要。