middle-mature stage的意思|示意

The third stage of merger begins from the middle and upper parts, often between the mature cloud clusters.

第三阶段的云并合却是从云的中上部开始的， 往往是那些比较成熟的对流云团发生并合。

Dark mudstone works as good source rock, with middle-good organic abundance, sapropel-humic and humic organic types as well as mature-high mature generation stage.

暗色泥岩有机质丰度中等—好，以腐泥—腐殖型和腐殖型为主，普遍进入成熟—高成熟阶段，是好的烃源岩。