Then tie powerchain or elastic line 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
Comparative assessment of Potential impacts of existing coal chain and nuclear powerchain in China in the middle of 90's period on health, environment and climate have been carried out.
对90年代中期我国现有煤电链和核电链对健康、环境和气候影响的比较进行了研究。
3
The power and ambition of the giants of the digital economy are astonishing—Amazon has just announced the purchase of the upmarket grocery chain Whole Foods for $13.5 bn.