The oxygenisotope ratio of the ocean changes as a great deal of water is withdrawn from it by evaporation and is precipitated as snow to form glacial ice.
随着大量的水通过蒸发被抽离，并以雪的形式沉淀形成冰川冰，海洋中氧同位素的比率就发生了变化。
2
Oxygenisotope records of stalagmites from Southern China provide very important climatic information.
中国南部石笋氧同位素记录记载了重要的气候变化信息。
3
The composition of oxygenisotope is a good tool to trace the origin and formation environment of sulfate.