formation rate

• 形成率

formation rate的用法和样例：

例句

1. The deep observations have also traced the waxing and waning of star formation in the universe at large over cosmic time.
   回溯宇宙年代的深度观测，同时也追踪了整个宇宙恒星形成率的变化。
2. Because many polyploidy species are themselves multiply derived, Stebbins' estimate is probably closer to the true polyploid speciation rate.
   由于许多多倍体物种是自身繁殖衍生，斯特宾斯的估计可能是更接近真正的多倍体物种形成率。