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单词
k-a age
释义
K-A age
K-A age
[
′kā′ā′ ‚āj
]
(geology)
The radioactive age of a rock determined from the ratio of potassium-40 (
40
K) to argon-40 (
40
A) present in the rock.
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更新时间:2025/11/3 19:52:17