"1" . . "1" . "" . "accepted"@en . "2018-02-12 16:53:18.0" . "SDN:P07::79QICV84" . . "SDN:P07::79QICV84" . . "2018-02-12 16:53:18.0" . "false" . "SDN:P07::79QICV84" . "integral_wrt_time_of_radioactivity_concentration_of_85Kr_in_air"@en . . . . "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. \"Kr\" means the element \"krypton\" and \"85Kr\" is the isotope \"krypton-85\" with a half-life of 3.95e+03 days."@en .