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Erythrocytes (red blood cells) moving through a capillary in single file.
Burial caves from Mangaia, Cook Islands, document the changing patterns of mortuary ritual.
Index card tickler file.
Use a grinder or a file to remove the mushroom material on the end of a punch or chisel.
A vane phaser is used to move the camshaft using changes of oil pressure from the oil control valve.
With your fingertips, using medium pressure, trace the colon over the abdomen. Move in clockwise ...