beam duty cycle

例句：

1. 1.The beam duty cycle of the laser is critical for its performance.
   激光的光束工作周期对其性能至关重要。
2. 2. The system's beam duty cycle was optimized to reduce power consumption.
   该系统的光束工作周期经过优化以减少功耗。
3. 3.The beam duty cycle of the laser can be adjusted to meet different requirements.
   激光的光束工作周期可以调整以满足不同的需求。