During "interglacials", the temperature was somewhat warmer and the ice retreated.
间冰期时，气温则有点暖和，冰层就慢慢融化。
These ice ages are also called glaciations and the periods of relative warmth between them are called interglacials .
这些冰期也叫冰河期，在各冰期间的相对温暖时期就叫间冰期。
These ice ages are also called glaciations and the periods of relative warmth between them are called interglacials .
这些冰期也叫冰河期，在各冰期间的相对温暖时期就叫间冰期。
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