研究人员将他们的研究基于冰河时期陆地与海洋的表面温度，通过检查冰核心，钻井，海底沉积物和其他因素。
The researchers based their study on ice age land and ocean surface temperature obtained by examining ices cores, bore holes, seafloor sediments and other factors.
这时核聚变将在恒星表面发生，而不再是其在核心了。
Instead of fusion taking place in the stellar core, it fizzles towards the surface.
红巨星内部的对流碰撞出新的原始尘埃原子会从其核心撞到表面。
Convection within the red giant dredges the new proto-dust atoms from the core up to the surface.
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