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關注：1
2013-05-23 12:21
求翻譯：206Pb. Because the U-Pb zircon technique permits accurate measurement of exceedingly ancient ages it is especially good for dating Precambrian rocks.是什么意思？ 待解決
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- 離問題結束還有
206Pb. Because the U-Pb zircon technique permits accurate measurement of exceedingly ancient ages it is especially good for dating Precambrian rocks.
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