mercury-contact switch

例句：

1. 1. The mercury-contact switch is a crucial component in the circuitry of our electronic devices.
   水银接触开关是我们电子设备电路中的关键组件。
2. 2.The mercury-contact switch was designed to prevent electrical shocks during electrical installations.
   水银接触开关被设计成在电气安装过程中防止触电。
3. 3.The mercury-contact switch has been replaced by more modern and efficient alternatives, reducing energy consumption and environmental impact.
   水银接触开关已被更现代和高效的替代品所取代，减少了能源消耗和环境影响。