surface_radioactivity_content_of_209Pb

https://w3id.org/hacid/data/cs/variables/cf/surface_radioactivity_content_of_209Pb <https://w3id.org/hacid/onto/data/Variable>

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. "Pb" means the element "lead" and "209Pb" is the isotope "lead-209" with a half-life of 1.38e-01 days. rdf:langString

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rdf:langString surface_radioactivity_content_of_209Pb

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