disintegrate 四级六级GRE专八

1.The older strata gradually disintegrate.

较老的岩层渐渐风化。

2.Results show that hydrogen-rich macerals are disintegrated while other macerals like fusain, and exinite are resistant to disintegration.

富氢的显微组分被分解，而丝炭和角的显微组分难分解。