初始比值 meaning in Chinese
initial ratio
Examples
- Because the chondritic asteroids formed after the chondrules did , the initial 26al to 27al ratio in chondrules places an upper limit on the amount of 26al that was available to heat the rocky bodies
因为球粒陨石小行星是在球粒之后形成,球粒中铝26对铝27的初始比值,决定了能够用来加热石质天体的铝26含量的上限。 - 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 )
以铝26的衰变速率估计,这些球粒的初始比值较低,表示它们是在耐火包体产生后100 ~ 200万年才形成(假设铝26在早期太阳系中确实是均匀分布的) 。 - If such 26al - rich chondrules once existed , there should also have been some intermediate chondrules that formed somewhat later and had moderately lower initial 26al to 27al ratios , not high enough to cause the destruction of the chondrules but higher than the ratios observed so far
如果含有如此丰富铝26的球粒曾经存在,那应该也有某种稍晚形成、且铝26对铝27的初始比值略低的中间型球粒,含量没有高到能破坏球粒,但比目前观测到的比值高。