31. The trick is to harvest liquid oxygen from the atmosphere. 32. At 2 minutes 17 seconds into the flight, the liquid oxygen supply was depleted. 33. Another trailer carried 6000 gallons of fuel and three liquid oxygen trailers each carried. 34. Part of the bunker was subsequently completed for use as a liquid oxygen factory. 35. The company makes liquid oxygen , nitrogen and other gases for manufacturing and health care industries. 36. Currently 90 percent of a rocket's weight is fuel _ liquid oxygen and liquid hydrogen. 37. These engines were liquid oxygen propelled, with kerosene coolant. 38. The tank's loads of supercold liquid oxygen and liquid hydrogen were drained after Thursday's scrub. 39. Delayed ignition allowed the chamber to fill with alcohol and liquid oxygen , which exploded violently. 40. If a decision was made to launch the missile, it was fueled with liquid oxygen .
