The intrinsic viscosities and the average degrees of polymerization of flame retarded PET are lower than the untreated sample and reduce the values with the increase of FR contents.
阻燃样品的特性粘度和平均聚合度比纯PET有所降低且随着阻燃剂含量的增加，特性粘度呈下降趋势。
In order to reduce the loss of radiation and take into consideration the coupling length of divider waveguides, Y divider angle is designed with 2 degrees.
为减少分支处的幅射损耗，并考虑分支器波导耦合长度，Y 分支器的分支角度设计值为2 度。
Conclusion: Rose tea can reduce EPDS score of women with postpartum depression and relieve related symptoms at different degrees.
结论：玫瑰花茶能够降低产后抑郁患者的EPDS评分，并不同程度减轻相关症状。
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