trioicous

trioicous的英语例句

1. The role of polyoxyethylene triol, rosin polyester polyol and asphalt in asphalt - polyurethane rigid foam was stressed.

   重点介绍了聚氧乙烯三醇 、 松香芳烃聚酯多元醇在配方中的作用.

2. With the compounding of polyether glycol and triol, the foam sealant can get good allround properties.

   聚醚二醇和聚醚三醇复配使用, 可制得综合性能良好的单组分聚氨酯泡沫胶体系.