1. a quality of variability and lack of uniformity. 
   容易变化、缺乏稳定性。
2. (chemistry) variability in chemical composition without variation in crystalline form. 
   结晶形式不变而化学组成改变的现象。
3. There is considerable variability in the size of individual polar bears. 
   每一极地熊的大小差异很大。
4. It is often difficult to find a proper equilibrium between stability and variability. 
   在稳定性和变化性之间通常很难找到适当的平衡。
5. China national seed corporation 
   中国种子公司

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