The thread parameters i. e., Major diameter, Minordiameter, Pitch, Angle and Call Out fields are not editable.
线叁数也就是，主修直径、较小的直径，程度、角度和呼叫出自领域不是可编辑的。
2
The necessary craft is carried on the essential research design according to the need of the craft of the polymer distributor of the minordiameter of well.
配套工艺根据小直径聚合物配注器工艺上的需要进行必要的研究设计。
3
Therefore, a series of special expanded packers with various kinds of advantages such as minordiameter, small spacing, and high bearing pressure, and simplify operation etc.