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  1. Oxford American Dictionary

    airlock

    • IPA[ˈerˌläk]

    美式

    • n.
      a blockage of the flow in a pump or pipe, caused by an air bubble.；a compartment with controlled pressure and parallel sets of doors, to permit movement between areas at different pressures.

    • noun: airlock, plural noun: airlocks

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    airlock

    • IPA[ˈɛːlɒk]

    英式

    • n.
      a stoppage of the flow in a pump or pipe, caused by an air bubble.

    Oxford Dictionary