"SDN:P07::4FH5X1PP" .
"SDN:P07::4FH5X1PP" .
.
"false" .
"SDN:P07::4FH5X1PP" .
"surface_radioactivity_content_of_77Ge"@en .
"2018-02-12 16:53:18.0" .
.
"" .
.
"accepted"@en .
.
"2018-02-12 16:53:18.0" .
"1" .
.
"1" .
.
"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. \"Ge\" means the element \"germanium\" and \"77Ge\" is the isotope \"germanium-77\" with a half-life of 4.72e-01 days."@en .