Swirling water jet is a high-pressure water through the nozzle from the orientated impeller inside the drill which is a diffusive jet with the three-dimension speed moving along the spiral line and has a particular structural properties and high rock-breaking efficiency.
旋转水射流是高压水经过钻头内部的导向叶轮从喷嘴脱离后形成的具有三维速度、沿螺旋线运动的扩散性射流,其结构特性独特,破岩效率高。
By studying the effects of the structural parameters of reinforcement and face plate, some qualitative rule is proposed, for example, the anchor should be 1.5 times length than distance between slip crack line and dam slope, and so on.
通过对加筋层支护结构及护面板的参数的变化研究,建议加筋长取滑裂面至边坡的1.5-2倍等一些定性的规律。
英语网 · 英语词汇
英语网 · 双语新闻
英语网 · 高考英语
英语网 · 双语娱乐资讯
英语网 · 中考英语