1.   Sharks of modern type replace their worn teeth with new ones by a sort of conveyor belt system.

2.   A computer reads the labels and the parcels whirl around the belt system on trays.

3.   If the crash is severe, the belt system will let out a little, spreading the deceleration over a few more thousandths of a second.

4.   In addition, Mercedes equips its cars with an unusually protective belt system, automotive engineers say.

5.   The tunnel is clogged with grain, concrete chunks from the storage bins above and twisted pieces of the conveyor belt system that transported grain through the complex.

6.   It has the tallest control tower, it was the biggest construction site, and it has the longest baggage conveyor belt system.

7.   Some of the check-in luggage failed to reach the aircraft because items accidentally rolled off the conveyor belt system, he said.