spiral bevel gear弧齿锥齿轮；螺旋伞齿轮
spiral groove螺旋沟
1.Unfortunately, such distant spirals look so small and faint that no one has ever done so – until now.
不幸的是，这样遥远的螺旋星系看起来是那么小，那么模糊，直到现在都没人能做到这一点。
2.It USES swimlanes instead of spirals to represent evolutions and rectangular solids instead of cylinders to depict iterations.
它使用泳道代替螺旋来表示演进，并且用长方体代替圆柱来描述迭代。
3.Liquidity risk and the current crisis: downward liquidity spirals.
流动性风险与当前的次贷危机：向下流动性螺旋曲线理论。
4.You see embedded spirals, right, of green, pinkish-orange, and blue?
你看见的是被嵌入的条纹，绿色，橙红色，还有蓝色，对吧？
5.Sometimes they did spins and spirals.
它们有时做旋转动作和盘旋动作。
6.This makes a repeat of ruinous wage-price spirals much less likely.
这使得破坏性的工资——价格螺旋更少可能重现。