However, highly optical pure PLA could easily crystallize leading to the difficulty in preparing material with one or two dimensional orientational ordering.
但是纯态的聚乳酸容易结晶，难以制备在一维和二维取向有序的材料。
However, highly optical pure PLA could easily crystallize leading to the difficulty in preparing material with one or two dimensional orientational ordering.
但是纯态的聚乳酸容易结晶，难以制备在一维和二维取向有序的材料。
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