primary cover layer

基本解释

• [交通運輸工程]主要覆蓋層

英汉例句

雙語例句

• Formation of the oxidized Mn deposit is controled by the primary Mn ore layer, tectonics, geomorphology, thickness and lithology of the cover rock, climate and hydrogeological condition.
  認爲表生富集型氧化錳鑛牀的形成主要受原生含錳層、地質搆造、地形地貌、頂蓋層厚度、巖性、氣候及水文地質等條件所制約。

• primary cover layer更多例句

专业释义

交通運輸工程

• 主要覆蓋層