outdoor single pole isolating switch

例句：

1. 1.The outdoor single pole isolating switch is essential for ensuring the safety of the workers.
   户外单极隔离开关对于确保工人的安全至关重要。
2. 2.The installation of this outdoor single pole isolating switch has greatly improved the efficiency of our factory's production line.
   安装这个户外单极隔离开关大大提高了我们工厂生产线的效率。
3. 3. During construction, it is necessary to ensure that the outdoor single pole isolating switch meets all safety standards.
   在施工过程中，确保户外单极隔离开关符合所有安全标准是必要的。