41. In most base unit , from which other units are defined. 42. Other German-based units of the same size will be sent in to replace them. 43. The base units are the Air Force airfields where its air assets are stationed. 44. Some School Based Units closed down while some struggled on. 45. This system reduces all physical measurements to a mathematical combination of seven base units . 46. The article has overly emphasized land-based units / the army. 47. And each base unit can handle inputs from up to seven keyboards at once. 48. While the handset uses a battery, the base unit most often requires AC power. 49. CarMax shares track the earnings of the Richmond, Virginia-based unit . 50. The Minneapolis-based unit makes refrigeration equipment for the transportation industry.