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thorium C'
gen.
钍 C'
(针的同位素)
earth.sc.
钍 C'
(针的同位素 Po212)
thorium C
gen.
钍 C
(秘的同位素)
thorium C"
gen.
钍C"
铊的同位素
thorium C
earth.sc.
钍 C
(铋的同位素 Bi²¹²)
thorium C"
earth.sc.
钍 C"
铊的同位素 Tl²⁰⁸
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