The most desirable properties necessarily command astonishingly high prices.最值得拥有的财产必然要价不菲。He was wearing, astonishingly, a frilly pink apron over shirt and trousers.他穿得很奇怪，衬衫和裤子外面套着件镶褶边的粉红围裙。During the Seventies, Rundgr...
Water - borne polyurethane is the predominant material of membrane pressing adhesive.水性 聚氨酯是真空吸塑胶的主要成分.The water - borne polyurethane was based on polyester diol and toluene diisocyanate etc.以聚酯多元醇、甲苯二异氰酸酯为主要原料合成了 水性 聚氨酯...