71.   Officials of the National Aeronautics and Space Administration said no technical problems threatened the launch, but there were concerns about possible low temperatures in the early morning hours.

72.   On Thursday, several record low maximum temperatures were recorded across the West.

73.   Others foods need to be stored at low temperatures to curb growth of bacteria.

74.   Outside the tropics, record low temperatures typically occur on clear, calm nights with dry Canadian air in place.

75.   Poisoning the dinner guests would be significantly reduced, because the technique of cooking the turkey at very low temperature overnight could be discarded.

76.   Particularly intriguing is a phenomenon, occurring at extremely low temperatures, called the fractional quantum Hall effect.

77.   Public health authorities rely on winter to reduce the risk of mosquito-borne diseases, because the low temperatures kill most of the infected mosquitoes.

78.   Reheat in oven on low temperature until warm.

79.   Shoveling snow is hard work, and the job is aggravated by the low temperatures that you must work in.

80.   She won the next year despite record low temperatures.