Particularly, it is more difficult to use diving drills to perform drill-pouring piles construction on this kind of foundation.
2
分析了传统湿式打眼难以推广应用的原因，叙述了外喷雾水电联锁煤电钻湿式打眼法。
The causes of using traditional wet drilling difficultly are analysed. And the wet drilling method of the coal electric drill of external spray hydroelectric interlock is related.
点击反馈