Lower Carboniferous

• 下石炭统

Lower Carboniferous的英文翻译是什么意思，词典释义与在线翻译：

英英释义

Noun:

1. from 345 million to 310 million years ago; increase of land areas; primitive ammonites; winged insects

Lower Carboniferous的用法和样例：

例句

1. Yamansu Formation of the Lower Carboniferous comprises the main ore-bearing formation in the Xiaoshitouquan ore district.
   摘要小石头泉矿区主含矿层为下石炭统雅满苏组第二亚组，火山穹隆及伴生断裂为主要的控矿构造。