The actuators apply dynamic forces to the mirror body to keep the reflecting surface in the correct shape.
A rigid rope can retain the correct shape at any speed.
They had to be removed, polished, and re-figured to the correct shape.
Several eggs had to be fried before the designers could settle on the correct shape.
It is not done to measure the size of the chest, but rather to feel for the correct shape.
The gather is formed to the correct shape and a bubble of air blown into it.
Mark built them back into the correct shape.
A millimeter too big, not quite the correct shape, and boom, you weren't defined as human anymore.
Once the pattern is traced onto the glass, the pieces can be cut and ground to their correct shape.
Hooves need to be of equal size and correct shape.