11.   La Stella said at the time he would go to jail before giving regulators technical documents describing how the engine works.

12.   Moreover, we had the air-conditioner running, meaning the gasoline engine was working while the car was stopped.

13.   Most tire companies have developed low-friction tread designs that make the engine work less to turn the wheels and thus promote fuel economy.

14.   Search engines generally work fine when you are looking for the obvious.

15.   Similar readings at the launch control center at Kennedy also showed the engines were working properly.

16.   The engine works by injecting the hydrogen fuel into a chamber where it is bombarded by radio waves.

17.   The engine works.

18.   This site includes helpful information on how search engines work and links to many of the more useful search sites.

19.   Two graphics, showing how fuel-cell engines work, and emissions from various engines, are being sent to NYT graphic clients.

20.   A government report released this week on the accident said both engines were working when the plane crashed.