• The main problems on horizontal directional drilling method of non-excavation in the practical applications were reviewed in the paper.

    论述了开挖水平导向钻进实际应用中的主要问题

    youdao

  • An apparatus and method for a modified horizontal directional drilling assembly for drilling pipe into a drilling surface.

    用于钻杆钻入钻探面的改良水平定向钻探组件器械方法

    youdao

  • An apparatus and method for a modified horizontal directional drilling assembly for drilling pipe into a drilling surface.

    用于钻杆钻入钻探面的改良水平定向钻探组件器械方法

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定