It can be magnified for any well section, Reliable theory and calculating means are provided for the design of wellbore assembly and controling direction of deflecton in drill engineering.

• 对任一井段还可局部放大显示，为钻井工程中井下钻具组合的设计和井斜方位的控制，提供形象而可靠的理论和计算工具。