The last glacial period is divided into two stadial stages with an interstadial stage.Evolution of lakes of the source area during the Quaternary went through three stages.
黄河源区的冰
分为3，即末次冰、倒
第二次冰、倒第三次冰，末次冰又分为2个冰阶。
的The last glacial period is divided into two stadial stages with an interstadial stage.Evolution of lakes of the source area during the Quaternary went through three stages.
黄河源区的冰分为3，即末次冰、倒第二次冰、倒第三次冰，末次冰又分为2个冰阶。
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