discharge orifice

例句：

1. 1. The engineer designedthe machine with an exhaust orificefor easy cleaning.
   工程师设计的机器带有一个排气孔，便于清洁。
2. 2. Thescientist used a high-pressure pump to displacethe liquid through the discharge orifice.
   科学家使用高压泵通过排放孔排出液体。
3. 3. The car's engine hasa large exhaust orifice that helpsto reduce noise pollution.
   汽车发动机有一个大型的排气孔，有助于减少噪音污染。