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。

Then tie power chain or elastic line on the hook and bracket (or band) to form two identical rotated strengths, but in opposite direction, to help correct torsiversion.

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标准橡皮筋由交错连接的长链聚合物制成，能拉伸至原先长度的几倍，释放后可缩回原型。

Standard rubber bands, which can stretch up to several hundred percent then snap back into shape, are made from long chains of cross-linked polymers.

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将整条橡皮筋链穿过洗碗机架子的底段，然后绕在酒杯周围，并在另一边打环扣住，这样就可以将杯子固定在洗碗机上了。

Loop the whole chain through the end of the dish-wrack then wind around wine glasses and loop at other side to keep them in place inside the dishwasher.

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