characteristic of the sound system的用法和样例：
例句
- The components and ecological characteristics of pteridophyte were depicted and the characteristics of flora were analyzed as well.
对该区蕨类植物种类与生境特点进行了描述，并分析了其区系特点。 - By means of collecting, and investigating Gramineae in Pamirs Plateau of China, we studied floristic characteristics of Gramineae in this area.
摘要在整理鉴定中国帕米尔高原禾本科植物标本的基础上，对该区禾本科植物区系特点进行了研究。
