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An airspace described as the "child" of an aggregation, may again be used as "parent" for another aggregation and so on . (so you are able to create "grandchildren" if you like to say so).
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An airspace described as the "child" of an aggregation, may again be used as "parent" for another aggregation and so on . (so you are able to create "grandchildren" if you like to say so).
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