上弧形 meaning in Chinese
arc upper
Examples
- 4 . the feature of linearity and ring structures shows that three structural lenses that are formed by the junction of four level i faults in alignment are helpful to the formation of ore - body . in longshujiao and longtouzhai lenes there are many intersectant east - north and west - north low level faults , so they are concentration place of ore - bodys
4 、从遥感线环构造特征上看，区内的四条主要东西向线性构造，是级控岩控矿线性构造，它们在走向上弧形交接形成三个构造透镜体，是成矿的有利部位。