单词 | propping agent |
释义 | propping agent [`präp·iŋ ´ā·jǝnt] PETROLEUM ENGINEERING A granular substance, for example, sand grains or walnut shells, suspended in the drilling fluid during the fracturing portion of the drilling operation to keep the fracture open when the fluid is withdrawn. |
随便看 |
|
科学参考收录了103327条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。