Like I said before, Uranium-LeadDating has been with us for a while.
就像我之前说到的,铀铅年代测定法已经存在一段时间了。
2
Because of this, this new way of doing Uranium-LeadDating, we've been able to determine that one of our major assumptions about the Grand Canyon was wrong.
因为有这种新的铀铅定年方法,我们才得以确定我们对大峡谷的一个主要假设是错误的。
3
I'll predict that Uranium-LeadDating is going to become an increasingly popular dating method.