1·As indicated in the section on simple machines, a screw ACTS with a wedging action and consists of a circular cylinder (or truncated cone) with a helical groove in it.
如在简单的机器上的区段所指出的，一个螺丝钉以一个楔住行动行事而且有圆形圆筒(或者切断了圆锥体)与一螺旋状的在它里面的凹槽。
2·There are commonly the helical structures in the celestial body from many gigantic whirl nebulae to small meteoric stone and dust falling to the Earth.
天体中， 从众多的硕大的旋涡状星云， 到坠落于地球上的微小的陨砂、陨尘， 普遍存在着螺旋状的结构形态。
3·By the experiment of high-speed milling aluminium alloy with carbide end milling cutter, the method of helical chip formation was researched.
通过硬质合金立铣刀高速加工铝合金的铣削试验，对螺旋状切屑的成形进行了研究。
4·The fiber with the axis perpendicular to the sliding direction has the helical crack morphology.
轴向垂直滑动方向的纤维呈螺旋状断裂形貌。
5·The first and second bends additionally cooperate to form a helical roller track on the outside of the tank.
此外，第一和第二弯曲协作以在桶的外侧形成螺旋状辊道。