这个的前提的是要满足这两个子细胞是几乎相同的、随机的、变化的。这并不受辖于“代谢机体老化”理论。
The assumption was that these daughters are as close to identical as random variation permits, and that neither is subject to the sort of ageing imposed by the disposable soma theory.
利用红外光谱分析法和沥青理论分析了沥青老化和再生机理，在控制RAP 掺量的前提下，采用新沥青AH-70 直接调和旧沥青。
New asphalt of AH-70 concoct old asphalt under the prerequisite of controlling the proportion of RAP. Many tests show that the recycled asphalt has good road character and the approach is feasible.
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