例句與造句

1. the study on preparement for polyether polyurethane elastomer and aging
   聚醚聚氨酯彈性體及其老化性能研究
2. hydrolysis resistant, thermoplastic polyether polyurethane elastomer coated nylon fabric for aerospace purposes
   航空航天用抗水解的涂覆熱塑性聚合物聚氨酯彈性物的尼龍纖維
3. It's difficult to find polyether polyurethane in a sentence. 用polyether polyurethane造句挺難的