mineral vein

同根派生

The pegmatite Nb-Ta mineral veins were controlled by a group of horizontal tenso-shear axial-direction fault-fissure systems in the NNE direction folding structures.
铌钽伟晶岩矿脉受控于NNE向褶皱构造的一组近水平张扭性轴向裂隙系。
There is a vein of melancholy in his character.
他的性格中有少许忧郁的气质。
When the mineral veins are buried deep in the earth, it is necessary to excavate shafts and tunnels to reach the ore body. There are many types of shafts andtunnels in a mine.
如果矿脉在地下埋藏较深，就必须挖掘井巷以通达矿体。井下井巷的种类有许多种。
These mineralized vein bodies are usually distributed within fractures of regional fault with medium or low dip angle near surface and high angle bellow or their alternating occarrences.
矿化脉体多分布在区域断裂的裂隙构造中，矿化体在地表以中（或低）角度产出，向下以高角度产出，或者两者交替产出形成类似于倾斜的“阶梯”状。
He doubles the parts of a farmhand and a miner.
在这出戏里他既扮演雇农又扮演矿工。