The extracted case was so old it just disintegrated when a worker picked it up. "这个挖掘出来的箱子已很破旧,一个工人一提起来就散开了。"
The older strata gradually disintegrate. 较老的岩层渐渐风化。
Results show that hydrogen-rich macerals are disintegrated while other macerals like fusain, and exinite are resistant to disintegration. 富氢煤的显微组分被分解,而丝炭和角质等煤的显微组分难分解。