求翻译：因此集料破坏表现以粗集料为主，即集料细化主要表现为粗集料向细集料的变化，而细集料进一步细化成粉料的情况并不明显。是什么意思？

Aggregate damage therefore dominated by coarse aggregate, that is mainly for coarse aggregate aggregate refinement to the change of fine aggregate, and fine aggregate further refined into a powder is not obvious.