If you place a spiralling shell down on the table with the spiral facing up then in most shells the spiral evolves in a clockwise orientation from the centre of the shell out.
如果你把一只螺纹贝壳放在桌上，螺旋面朝上，绝大多数的螺线是顺时针方向从中心到边缘展开。
Moreover, underscoring the woman's apparent special status, her head was placed on top of one tortoise shell, and the other shells were arrayed above, below, and around her body.
此外，坟墓很明显还强调了这个妇女的特殊地位，她的头被放在一个龟甲的上面，并且其它龟壳被排列在身体的上面，下面和周围。
These are some of the default Korn shell control keys, but they work for most shells and editing modes.
存在一些缺省的Korn Shell控制键，但它们适用于大多数Shell和编辑模式。
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