effective pulse width

例句：

1. 1. The device's effectiveness in reducing noise is well-documented.
   该设备减少噪音的效果已被广泛记录。
2. 2.The new software is more efficient than its predecessor.
   这款新软件比它的前身更高效。
3. 3.The experiment was designed to test the effectiveness of the new treatment.
   这个实验旨在测试新治疗方法的有效性。