vacuo junction

例句：

1. 1. The vacuum cleaner is designed to removedust and dirt from the air.
   真空吸尘器设计用来从空气中去除灰尘和污垢。
2. 2.The scientist used a vacuum junction toconnect two circuits together.
   科学家使用一个真空接头将两个电路连接在一起。
3. 3. Thevacuum junction was essential for maintaining thecleanliness of the lab.
   真空接头对于保持实验室的清洁至关重要。