31.   The GOP is the main political engine for dismantling affirmative action.

32.   The main engines then detonated the gases, sending a pressure wave up one side of the vehicle.

33.   The orbiter will fire its main engine to brake itself into orbit around the planet.

34.   The three solid rocket motors made so many corrections they used up all their hydraulic fluid and the main engine alone was not enough to steer the rocket.

35.   The split between the two nations -- the main engines of the drive toward greater European unity -- threatened to derail the entire single-currency project.

36.   Then, people as far north as New York reported seeing both the glow of the main engines and sunlight reflected off the shuttle itself.

37.   Then suddenly it shuddered into silence -- its main engines shut down before the scheduled dawn launch because of an overheated fuel pump.

38.   There is also a two-dimensional pitch-vectoring main engine nozzle.

39.   These improvements include developing safer main engines and upgraded electronics for the space planes.

40.   They are not expletives, but part of a slang whose main engine seems to be talk radio.