例句與造句

1. Given the decay rate of 26al , the lower initial ratio in the chondrules implies that these objects formed between one million and two million years after the creation of the refractory inclusions ( assuming that the radioisotope was indeed homogeneously distributed in the early solar system )
   以鋁26的衰變速率估計(jì)，這些球粒的初始比值較低，表示它們是在耐火包體產(chǎn)生后100 ~ 200萬(wàn)年才形成（假設(shè)鋁26在早期太陽(yáng)系中確實(shí)是均勻分布的） 。
2. It's difficult to find initial ratio in a sentence. 用initial ratio造句挺難的