FIELD: chemical power supplies. SUBSTANCE: case has at its bottom two arc- shaped depressions with notches at their edges and shaped disk that follows shape of case bottom and is rigidly welded in center of the latter. Disk-to-bottom thickness ratio is (0.8-1.2):1 and bottom-to-disk depression depth ratio is (0.5;0.8):1. EFFECT: improved design. 1 dwg
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