slopover

例句：

1. 1. The engineer used a slopover to drain the oil from the engine.
   工程师使用漏斗将油从引擎中排出。
2. 2.The slopover was used to collect rainwater for irrigation.
   漏斗被用来收集雨水用于灌溉。
3. 3.The slopover was designed to prevent water from flowing back into the system.
   漏斗的设计是为了防止水回流到系统中。