"1" . "false" . "SDN:P07::6Q586TEA" . "SDN:P07::6Q586TEA" . . "" . . "accepted"@en . "1" . "2018-02-12 16:53:18.0" . . . . "SDN:P07::6Q586TEA" . "surface_radioactivity_content_of_130mSb"@en . . "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 \"130mSb\" is the metastable state of the isotope \"antimony-130\" with a half-life of 4.58e-03 days."@en . "2018-02-12 16:53:18.0" .