例句與造句

1. In addition , the heparinase is stimulated in the presence of ca2 + and mn2 + , but is inhibited by cu2 + and fe3 + . neither pmsf nor edta significantly affected enzyme activity . by infrared spectrum and proton resonance spectrum analysis , we found smaller polysaccharides , unsaturated bond and reducing sugar , which are specific products by heparinase
   在產(chǎn)物分析中發(fā)現(xiàn)，該酶作用于肝素后，還原糖數(shù)量明顯增加，通過紅外色譜及質(zhì)子譜的分析發(fā)現(xiàn)，產(chǎn)物中出現(xiàn)了含不飽和雙鍵的還原寡糖，這是肝素酶作用于肝素后的特異性產(chǎn)物，從而可以進一步證明該菌確實產(chǎn)生肝素酶。
2. It's difficult to find proton resonance spectrum in a sentence. 用proton resonance spectrum造句挺難的