In our research, we understand that there is a machine that dispenses premixed, meaning both polyol and isocyanate is blended together and packed in a single vat.

• 在我们的研究里我们发现一种混合机械，意思就是用多元醇和异氰酸酯合在一起的混合机械，它是被装在一个单一的容器里面的。