characteristic curves of propeller

例句：

1. 1.The color of the flowers is a characteristic of this species.
   这种花的颜色是这种物种的特征。
2. 2. The new product has several quality improvements over its predecessor.
   这款新产品在质量上比前一代产品有多项改进。
3. 3.The scientist discovered a new trait in the genome of the plant.
   科学家在植物的基因组中发现了一种新的特征。