研究发现，虽然引发剂在聚己内酯二醇中只占3%-4.5%，但它较大地影响聚氨酯的性能。

It was found that though the initiators were only about 3%-4.5% of the mass of polycaprolactone, they markedly affected the properties of the polyurethane.

youdao

研究发现，虽然引发剂在聚己内酯二醇中只占3%-4.5%，但它较大地影响聚氨酯的性能。

It was found that though the initiators were only about 3%-4.5% of the mass of polycaprolactone, they markedly affected the properties of the polyurethane.

youdao