The red cells have a spherical rather than the biconcave-disk shape of the normal red cell.
红血球呈现球状，而不是正常细胞的双凹圆盘状。
This spinning motion, at speeds of hundreds of kilometers per second, may cause matter in the disk to take on a spiral shape.
这种以每秒数百公里的速度旋转的运动，可能会使圆盘上的物质呈现出螺旋形状。
Red blood cells are roughly the shape of a disk.
红细胞大致呈圆盘状。
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