mercury-wetted reed switch

例句：

1. 1.The mercury-wettedreed switch was the only way toprevent the flood from entering the house.
   水银涂布的芦苇开关是防止洪水进入房屋的唯一方法。
2. 2. Themercury-wetted reed switch wasa crucial part of the emergency planfor the town.
   水银涂布的芦苇开关是该镇紧急计划中至关重要的一部分。
3. 3. The mercury-wetted reed switch was designed todetect and prevent fires in the building.
   水银涂布的芦苇开关被设计用来检测和预防建筑物内的火灾。