levelling bulb reservoir

例句：

1. 1. The levelling bulb reservoir is designed to maintain a consistent water level in the tank.
   水平调节阀的设计是为了保持水箱内水位的稳定。
2. 2. The ball valve reservoir is used to store and distribute water for various applications.
   球阀储水器用于储存和分配各种应用所需的水。
3. 3. The levelling bulb reservoir is crucial for maintaining proper water pressure in the pipeline system.
   水平调节阀对于保持管道系统中适当的水压至关重要。