annular structure meaning in English
环形结构
环状构造
Examples
- Results the inner annular structure ( body ) is for exploration of oil , gas and coal ; the border of inner annular structure ( body ) for exploration of uranium ; middle annular structure ( body ) for exploration of coal and uranium because coal - bearing formation and uranium - riching formation outcrop in this area
结果内环体是南油北气、煤集中分布区和有利勘探区，内环体边缘是砂岩型铀矿分布区和有利勘探区，中环弧带是含煤地层和砂岩型轴成矿层出露区和勘探区。