bottom hole rock surface
常见例句
- Required rate of irrigation fluid on the back to the bit to cut down ﹑ rock cuttings from the hole bottom red powder in a timely manner, and to reliably bring to the surface.
要求冲洗液的上返速率可能把钻头切削下来的岩屑﹑岩粉准时冲离孔底﹐并可靠地携带到地表。 返回 bottom hole rock surface