Then tie power chain or elasticline on the hook and bracket (or band) to form two identical rotated strengths, but in opposite direction, to help correct torsiversion.
在拉钩与托槽或带环上分别挂橡皮链或弹力线形成一组方向相反、力量相等的旋转力作用于扭转牙达到矫治。
2
Elastic statics mainly relates to the connection between force and transmogrification, elastic body's invalidation, the guide line of design in invalidation.
弹性静力学主要涉及力和变形之间的物性关系，以及弹性体的失效、与失效有关的设计准则。
3
The problem of torsion of elastic shaft of revolution embedded in an elastic half space is studied by the Line-Loaded Integral Equation Method (LLIEM).