tobacco composition

• 烟叶化学成分

tobacco composition的用法和样例：

例句

1. Effects of different picking methods on chemical composition and content of volatile aromatic matter of upper leaves in flue-cured tobacco were studied.
   摘要研究了不同采收方式对烤烟上部烟叶化学成分和主要挥发性香气物质含量的影响。