或使瓶颈再结晶(变白)，结晶的瓶颈能耐高的热灌温度。
Alternatively, the bottle neck is crystallized (and turns white). Crystallized PET bottle neck could stand up to a high hot fill temperature.
灰生成是使灰过程变白的数据变换方法，能为灰预测建模提供中间信息，并弱化原始数据的随机性，在灰色系统建模理论中具有显赫的地位。
Grey generating is a method of transfering the grey process into white process. It can provide middle information for grey forecasting modeling and weaken the randomness of the raw data.
灰生成是使灰过程变白的数据变换方法，能为灰预测建模提供中间信息，并弱化原始数据的随机性，在灰色系统建模理论中具有显赫的地位。
Grey generating is a method of transfering the grey process into white process. It can provide middle information for grey forecasting modeling and weaken the randomness of the raw data.
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