propionic ester造句

例句与造句

1. The method showed promising results compared with conventional methods . the second part : we mainly reported the synthesis of some chemical reagents such as palladiumphthalocyanine , palladium 4 , 4 ' , 4 " , 4 ' " - tetranitrophthalo - cyanine , pvp - chitosan grafting copolymer , n - propyl carboxylate , propionic esters
   （ 2 ）在第6章利用pvp优良的生物相容性，将其接枝到甲壳糖分子链，以改善甲壳糖作为组织工程材料应用的不足之处。
2. It's difficult to find propionic ester in a sentence. 用propionic ester造句挺难的