这些动词都表示基于不确定证据而作出结论或推断。
These verbs mean to reach a conclusion or judgment on the basis of uncertain evidence.
由于这些优点,可以通过辐射测量方法以足够确定沉积证据的年代,从而建立一个精确的冰河时代年表。
Because of these advantages, sedimentary evidence can be dated with sufficient accuracy by radiometric methods to establish a precise chronology of the ice ages.
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