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Shingo Matsumura, left, and Yuichi Tsukuda, right, both 35th Civil Engineer Squadron boiler operators, check a steam production plant at Misawa Air Base, Japan, Jan. 30, 2017. The technicians perform maintenance checks ensuring all the boilers in Misawa’s 11 plants are not at dangerous pressure levels. Each check is performed every eight hours when personnel shifts change. (U.S. Air Force photo by Airman 1st Class Sadie Colbert)
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