The Permian rocks lie just below the next geological period, the Triassic.
Rampino's system relied on the observation that the earth's orbit round the sun alters minutely every 23,000 years.
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The Permian rocks lie just below the next geological period, the Triassic.
Rampino's system relied on the observation that the earth's orbit round the sun alters minutely every 23,000 years.
重点单词 | 查看全部解释 | |||
mass | [mæs] | |||
minutely | ['minitli] | |||
distinctive | [di'stiŋktiv] | 联想记忆 | ||
observation | [.ɔbzə'veiʃən] | 联想记忆 | ||
determine | [di'tə:min] | 联想记忆 | ||
boundary | ['baundri] | |||
enhance | [in'hɑ:ns] | |||
manipulate | [mə'nipjuleit] | 联想记忆 | ||
extinction | [iks'tiŋkʃən] | 联想记忆 |