airspace

noun

(politics, aviation) A specified portion of the atmosphere, especially that under the technical aviation control and/or jurisdiction of a particular state over which territory (and territorial waters) it lies.

The government has restricted access to the airspace due to security concerns.

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意味（1）

詳細

意味（2）

(aviation) that part of the sky designated for the sole use of aircraft.

意味（3）

(broadcasting) Space (i.e. a few neighboring frequencies) available for broadcasting within a particular frequency band.

The legalisation of free radios caused a bitter fight for airspace.

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意味（4）

The portion of an enclosed area which contains air, especially breathable air.

意味（5）

(construction) The cavity in a cavity wall containing air for insulation.

詳細

airspace

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airspace

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