Keratoconus is a deterioration of the structure of the cornea with gradual bulging from the normal shape to a cone shape.

圆锥角膜是一种角膜的结构退化，病发时患者角膜由正常情况下的圆形逐渐鼓胀成圆锥形。

youdao

Elastic deformation is that part of the deformed material which when the applied load is removed would spring back to its normal shape.

弹性变形是材料变形部分在去除载荷后可以恢复到原来的形状。

youdao

Once the collision is over, the orbits return to their normal shape, and electrons have to absorb energy to stay in the new higher orbit.

碰撞一旦结束，轨道就恢复到正常的形状，而电子必须吸收能量才能保持在新的高轨道上。

youdao

It is hoped the cornea will move back to a normal shape and the eyesight will be corrected and prevented from further damage.

BBC: Pioneering eye op for schoolboy

Although the snowfall was light into Friday afternoon, the forecast appeared to shape the normal activities of New Yorkers.

WSJ: Officials Urge Caution as Snow Starts Falling

Normal service - in the shape of Betsan - returns next week.

BBC: In...out...shake it all about