water supply selector

例句：

1. 1. This water supply selector can help you save time and energy.
   这个供水选择器可以帮助你节省时间和能源。
2. 2. The water supply selector is a crucial component of the water system.
   供水选择器是水系统的关键组成部分。
3. 3. The water supply selector ensures that only clean water is supplied to the users.
   供水选择器确保只向用户提供清洁的水。