The modified PP fiber was prepared by blending a dispersant, nano-calcium carbonate and polypropylene (PP) chips at a specific ratio.
将分散剂、纳米碳酸钙和聚丙烯(PP)切片按一定比例混合纺丝制得改性PP纤维。
Genetics most likely play a role in a person's specific ratio of cells that would encode general versus more detailed memories, Tsien said.
提雪说，一个人特定的细胞比例：“普通知识”对“细节记忆”，很可能受到遗传的影响。
Specifically disclosed is a polycarbonate containing a group having a siloxane structure at an end and an aryl group at a specific ratio.
本发明是在末端以特定的比例含有具有硅氧烷结构的基团和芳基的聚碳酸酯。
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