rate of net drilling
·2,447,543篇论文数据，部分数据来源于NoteExpress
本文用垂直同轴圆柱环形空间内的螺旋流流场作为钻井井内流体流场的理想化模型，得出了任意纯粘性流体螺旋流流场的速度及排量表达式。
The expressions of velocity and flow rate of helical flow of a general viscous fluid has been obtained by using helical flow in a vertical annular space as an idealized flow model.
youdao
应用推荐
模块上移
模块下移
不移动