Among other activities, engineers tested tile repair tools for the space shuttle.

Our engineer tested the gravel in his laboratory, primitive as yet, and refused to accept it.

Thus far the engineers have only tested their design in computer simulations and in small models.

The engineers cleared the rock debris and tested for safety, finishing the project in November of that year.

The engineers here have built and tested it during the last twelve hours, and it's now in action.

He added that as the project proceeded, engineers would test for any potential threats to structures above ground.

Later, the engineers test their designs and make them better.

Before construction began, Pani had engineers test the ground, and it was declared solid.

At different times during the trip into the park the engineers will test the safety systems on the train.

Not until these propaganda events had taken place could the engineers test its performance.