"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. \"Pd\" means the element \"palladium\" and \"109Pd\" is the isotope \"palladium-109\" with a half-life of 5.61e-01 days."@en .
"" .
"SDN:P07::52IUWBLO" .
"2018-02-12 16:53:18.0" .
.
.
.
.
"surface_radioactivity_content_of_109Pd"@en .
"accepted"@en .
"2018-02-12 16:53:18.0" .
"SDN:P07::52IUWBLO" .
.
.
"false" .
"1" .
"SDN:P07::52IUWBLO" .
"1" .