Important: Modifications of the content tree are only allowed in the action phase.
重要：在操作阶段仅允许修改内容树。
Now, the next phase is about content.
现在，下一个阶段是有关的内容。
Otherwise, phase separation degree of WPU film from different soft segment content was discussed.
另外还研究了不同软段含量的聚氨酯材料在微相分离程度的差异。
Otherwise, phase separation degree of WPU film from different soft segment content was discussed.
另外还研究了不同软段含量的聚氨酯材料在微相分离程度的差异。
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