self acting ejector

例句：

1. 1. The self-acting ejector is designed to automatically dispense the contents without manual intervention.
   这种自我驱动的喷射器设计成自动分发内容，无需人工干预。
2. 2. The self-acting ejector was developed to improve efficiency in waste disposal.
   这种自我驱动的喷射器被开发出来，以提高废物处理的效率。
3. 3. The self-acting ejector has proven to be a valuable tool for cleaning and sanitizing industrial equipment.
   这种自我驱动的喷射器已被证明是清洁和消毒工业设备的一种有价值的工具。