The axial drawing ratio and hoop extensionratio should be properly matched.
轴向拉伸比和环向扩张比要合理匹配。
2
The parameters mentioned are defined for the first time, such as the ratio of pore pressure and upper formation pressure, the fracture extension grads, etc.
孔隙压力流体评价方法所涉及到的孔覆比和裂缝延伸梯度等参数均为首次定义。
3
To establish relative perfect systems of qualified personnel training and technical extension for increasing the contribution ratio of ecological construction.