"air_pressure_at_freezing_level"@en . "SDN:P07::CFSN0021" . . "" . . "SDN:P07::CFSN0021" . . "2017-07-24 14:36:59.0" . . "2017-07-24 14:36:59.0" . . "SDN:P07::CFSN0021" . . . . "2" . . "Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation."@en . "false" . . "accepted"@en . "2" .