characteristic of the sound system的用法和樣例：
例句
- The components and ecological characteristics of pteridophyte were depicted and the characteristics of flora were analyzed as well.
對該區蕨類植物種類與生境特點進行了描述，並分析了其區系特點。 - By means of collecting, and investigating Gramineae in Pamirs Plateau of China, we studied floristic characteristics of Gramineae in this area.
摘要在整理鑒定中國帕米爾高原禾本科植物標本的基礎上，對該區禾本科植物區系特點進行了研究。
