airlock

n 1 stoppage in the flow of liquid in a pump or pipe, caused by a bubble of air 气塞（液泵或液管中阻止液体流动的气泡堵塞）. 2 compartment with an airtight door at each end, providing access to a pressurized chamber 气闸室（两端有密闭门可通往增压室）.

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