pre-arcing time

例句：

1. 1.The pre-arcing time is crucial for the success of the project.
   预弧时间对于项目的成功至关重要。
2. 2. During the pre-arcing time, we need to ensure that all equipment is in good working condition.
   在预弧时间内，我们需要确保所有设备都处于良好工作状态。
3. 3. The pre-arcing time is also a critical period for testing and validation.
   预弧时间也是测试和验证的关键时期。