1 ผลลัพธ์ สำหรับ
rubidium-strontium dat
ลองค้นหาคำในรูปแบบอื่น: -rubidium-strontium dat-, *rubidium-strontium dat*WordNet (3.0)WordNet (3.0)
(n)geological dating based on the proportions of radioactive rubidium into its decay product strontium; radioactive rubidium has a half-life of 47, 000, 000, 000 years
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