"2018-02-12 16:53:18.0" . "false" . . . "SDN:P07::83YYE9EG" . "1" . "1" . "The phrase \"integral_wrt_X_of_Y\" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase \"wrt\" means \"with respect to\". \"Radioactivity\" means the number of radioactive decays of a material per second. \"Radioactivity concentration\" means radioactivity per unit volume of the medium. \"Bi\" means the element \"bismuth\" and \"214Bi\" is the isotope \"bismuth-214\" with a half-life of 1.37e-02 days."@en . "integral_wrt_time_of_radioactivity_concentration_of_214Bi_in_air"@en . "" . "accepted"@en . "2018-02-12 16:53:18.0" . . . "SDN:P07::83YYE9EG" . . . "SDN:P07::83YYE9EG" .