冰川是巨大的长期存在的冰体，除了气候和湿度变化以外，海拔对冰川的寿命也起了关键性的作用。
Apart from climate change and humidity, elevation also appears to play a critical role in the lifespan of glaciers, which are large persistent bodies of ice.
纳西族的白石崇拜主要根源在于纳西族对白石的崇拜，玉龙雪山在纳西族白色崇拜转化为白石崇拜中起了关键性的作用。
The white worship of Naxi is the source for the white stone worship of Naxi, the Yulong snow mountain is the key to the change of the white worship into the white stone worship of Naxi.
以PX吸附分离过程为研究对象，运用基于SOM模型的数据挖掘算法对其进行分析研究。SOM模型在整个挖掘过程中起了关键性的作用。
PX absorption and separation process is studied and analyzed using data mining methods based on SOM model, and the SOM model plays a key role in the whole data mining process.
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