The turbulator can be used to improve the centralization of the casing strings, to allow the fluid to form spiral flow, as well as to improve the displacement efficiency.
使用旋
扶正器既可提高套管

度,又可
体进

而形成螺旋
,还可以提高环空水泥浆
泥浆
顶替效率。
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年六级听力真题精听
境 

人物传记
境 If you think of it as a kind of a cube, across the top, F is for forecasting and planning, A is for alignment of departments, C is for centralization of data, T is technology focus, O is optimization and execution, Amy, I'm sorry to interrupt.
如果你把它想象成
个立方体,顶面
:F代表预测与规划,A代表部门间的协同,C代表数据集中化,T代表技术聚焦,O代表优化与执行。艾米,不好意思打断你
下。
