n.螺旋；螺旋状物；耳轮
Some biological molecules have the form of a helix. 有些生物分子呈螺旋状。
The helix makes a complete turn every 4. 4nm. 螺旋每隔4.4nm旋转一周。
There are five other double helix pairs in the DNA system. 在DNA系统里还有五条其它的双螺旋对。
These changes are accorded with the rule of helix theory. 这种变化关系与螺旋理论的规律是一致的。
对耳轮
