"1" . "radioactivity_concentration_of_125Sb_in_air"@en . "accepted"@en . "" . "2018-02-12 16:53:18.0" . . . . "SDN:P07::0W5S023H" . "1" . "\"Radioactivity\" means the number of radioactive decays of a material per second. \"Radioactivity concentration\" means radioactivity per unit volume of the medium. \"Sb\" means the element \"antimony\" and \"125Sb\" is the isotope \"antimony-125\" with a half-life of 9.97e+02 days."@en . "SDN:P07::0W5S023H" . . "false" . "SDN:P07::0W5S023H" . . . "2018-02-12 16:53:18.0" .