"2018-02-12 16:53:18.0" . "SDN:P07::2W7BHXI3" . "The surface called \"surface\" means the lower boundary of the atmosphere. \"Content\" indicates a quantity per unit area. \"Radioactivity\" means the number of radioactive decays of a material per second. \"Sb\" means the element \"antimony\" and \"124mSb\" is the metastable state of the isotope \"antimony-124\" with a half-life of 1.41e-02 days."@en . . . . "accepted"@en . "2018-02-12 16:53:18.0" . . "SDN:P07::2W7BHXI3" . . "false" . "SDN:P07::2W7BHXI3" . . "1" . "surface_radioactivity_content_of_124mSb"@en . "" . "1" .