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@{$envars[0]}{qw(value description)} = ('23' , 'temperature in Celsius +'); @{$envars[1]}{qw(value description)} = ('56' , 'relative humidity in % +');
@{ $envars{value} } = qw(23 56 1008.1 4 344); @{ $envars{description} } = ( ... 'dwpoint in degrees Celsius', 'total column ozone in Dobson Units' );