例句與造句

1. from the emission spectra of coumarin 102 ( c102 ) in different conditions, it showed that c102 molecule existed single in both the composite material films . the sample catalyzed by acid had flat surface and dense structure but it had hackly surface and open structure catalyzed by the alkali
   香豆素102（ci02）在不同狀1態(tài)下的熒光分析表明，無論是堿還是酸催化所得薄膜復(fù)合材料，ci02分子在其中基本都以單體的形式存在。
2. It's difficult to find hackly surface in a sentence. 用hackly surface造句挺難的