A trial run or test run of equipment or machinery to check that it operates correctly.
新しいエレベーターは来週、試運転を行う予定だ。
The new elevator is scheduled for a test run next week.
車を修理した後、念のため試運転して問題がないか確かめた。
After repairing the car, I did a test run just to make sure there were no problems.
発電所は定期点検後に長時間の試運転を行った。
The power plant carried out an extended test run after its regular inspection.