Chex had to slow to avoid cracking her hooves against the rocks, and the pursuing centaurs gained.

Seven had to duck to avoid cracking her head on the roof.

These early lights had to be turned on underwater to avoid cracking the heated glass as it entered cold water.

To avoid cracking the pieces had to be quite thin.

Another use is to add it in sol-gel solutions in order to avoid cracking during sintering.

With a gun-butt it took fine judgement to avoid cracking the skull.

Tighten the nuts by hand to avoid cracking the base of the bowl.

A tall man would have to duck to avoid cracking his skull on a protruding valve or pipe.

The acting challenge here was to avoid cracking one's head into a metal doorjamb or lurching through a glass partition.

Wear goggles to avoid splinters, and work carefully to avoid cracking the tiles.