The holecurvature can be controlled through controlling the magnetic filed intensity and the velocity of electron.
控制电子束的速度和磁场强度，即可控制曲率半径。
2
In this article, the principal factors affecting holecurvature are analysed, the principle of anti-deflecting packed hole assembly design is discussed.
本文分析了影响井眼曲率的主要因素，论述满眼防斜钻具组合设计的原则。
3
In the light of characteristics that horizontal hole possesses a certain rate of curvature, the method of estimating minimum axial force at any point along a rod string is established.