formation rate的用法和樣例：
例句
- 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觀測，同時也追蹤了整個宇宙恆星形成率的變化。 - Because many polyploidy species are themselves multiply derived, Stebbins' estimate is probably closer to the true polyploid speciation rate.
由於許多多倍體物種是自身繁殖衍生，斯特賓斯的估計可能是更接近真正的多倍體物種形成率。
