恢复这一时期的古环境，对了解全球环境变化具有重要的意义。
Palaeoenvironmental reconstruction in the time has a profound significance for understanding global environmental change.
冰岩芯研究是古气候、古环境研究的有力手段，它将为“全球变化研究”提供多方面的气候、环境信息。
Ice core study, providing much information for "a study of global change", is an effective approach to the study of paleoclimate and paleoenvironment.
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