Hold a snail with the tip of its shell pointing upwards and the opening towards you, and the shell will normally coil away to the right. Less commonly, it will coil to the left.
如果将蜗牛的壳尖朝上而让它的口对着自己这样放着，它的壳往往会向着右边旋去，一般情况下很少会向左转。
Hold a snail with the tip of its shell pointing upwards and the opening towards you, and the shell will normally coil away to the right.
如果将蜗牛的壳尖朝上而让它的口对着自己这样放着，它的壳往往会向着右边旋去，一般情况下很少会向左转。
Modern-day right-handed crabs orient their prey with the shell pointing away from their body and the opening on the right-hand side .
如今右撇子的螃蟹懂得调整猎物---让蜗牛的壳尖远离自己的身体而让蜗壳口对着自己的右边。
The stability of a large opening composites conic shell stiffened with nettings under axial compression, external pressure and their combination is calculated in this paper.
本文用有限元法计算了受轴压、外压、以及轴压和外压联合作用下的大开。
The second shell body is provided with a second convex column with a third opening.
第二壳体具有一第二凸柱，其具有一第三开口。
The second shell body is provided with a second convex column with a third opening.
第二壳体具有一第二凸柱，其具有一第三开口。
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