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Portable Network Graphic  |  1988-07-08  |  2KB  |  447x176  |  1-bit (2 colors)
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OCR: CRYSTAL TYPE AXES AXIAL ANGLES Cubic a1 = a2 = a3 All angles = 90º Tetragonal All angles = 90º Orthorhombic a1 = a2¥ c All angles = 90º Monoclinic 2 angles= 90º; 1 angle # 90º Triclinic a¥b¥c All angles different; none = 90º Hexagonal Rhombohedral 81 = a2 = az # c Angles = 90º and 120º a1 = a2 = a3 All angles equal, but not 90º DESCRIPTION OF CRYSTAL SYMMETRY FLIGHT ENGINEERING 1987