31. The brake pads lock as part of the fail-safe mechanism when an air lock occurs. 32. The Quest air lock was installed last summer and experienced minor problems at the time. 33. Two spacewalking astronauts planned to float out the $ 164 million air lock around midnight. 34. A souped-up Atlantis leaves Thursday to attach an air lock to the International Space Station. 35. The air lock allows American space station astronauts to conduct spacewalks in their own suits. 36. The suit will also be designed to interface with both classical air locks and suit ports. 37. You inaugurated the air lock in great fashion, 38. The air lock allows American astronauts at the station to conduct spacewalks in their own suits. 39. The few experts allowed in must go through an air lock , like on a space ship. 40. Two spacewalking astronauts planned to float out the $ 164 million air lock just after midnight.
