contents of protein的用法和樣例：
例句
- Leaf nitrogen content induces remarkable effect on chlorophyll and soluble protein content.
葉片氮含量對葉綠素與可溶性蛋白含量會(huì )產(chǎn)生明顯的影響。 - Legume species are favorable as the experiment materials because of the high level of proteins they contained.
之所以選擇豆科植物作為實(shí)驗材料是因為豆科植株中蛋白含量很高。
