Instead of fire drills, his school held duck-and-cover drills.

The lower image is of a disassembled pin chuck that is used to hold small drills or workpieces.

The county does hold drills every year simulating emergencies at the plant, but only for emergency workers.

They hold regular small-scale drills and have worked out procedures for emergencies.

He had held countless strategy sessions, conference calls, tests, drills, press briefings, public hearings and closed-door meetings.

All can be off the ground in 18 hours, and regularly hold drills to prove it.

Like other guard units during the inter-war years, the 106th held monthly drills and yearly training.

Each spring training, teams hold drills early and often.

So they send out a storm warning-and the Tricorn and other ships hold radiation-shelter drills.

A number of the companies are also holding extra drills.