primary cover layer

基本解釋

• [交通運(yùn)輸工程]主要覆蓋層

英漢例句

雙語(yǔ)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(rèn)為表生富集型氧化錳礦床的形成主要受原生含錳層、地質(zhì)構(gòu)造、地形地貌、頂蓋層厚度、巖性、氣候及水文地質(zhì)等條件所制約。

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專業(yè)釋義

交通運(yùn)輸工程

• 主要覆蓋層