airlock
noun [ C ] uk/ˈeə.lɒk/ us/ˈer.lɑːk/
(ROOM)
压差隔离室;密封舱
a room between two areas that have different air pressure, allowing you to go from one area to the other
Airlocks are commonly found on submarines and manned spacecraft. 潜水艇和载人航天器上一般都有压差隔离室。
(BUBBLE)
（阻止液体在管内流动的）气泡，气塞
a bubble in a pipe that prevents liquid from flowing along it