井架

Steel derricks rose to meet our eyes as we drew nearer to the oil fields.

我们快到油田时看到了矗立的井架。

Utilized this method to segmentalize the image of oil derrick arc welding robot welding line gets up the good effect.

将该方法运用于石油井架弧焊机器人焊缝图象的识别中到很好的效果。