helix

英 [ˈhiːlɪks]

美 [ˈhiːlɪks]

n.  螺旋(形)

复数：helixes　

IELTS化学

BNC.17577 / COCA.22645

牛津词典

noun

• 螺旋（形）
  a shape like a spiral or a line curved around a cylinder or cone

柯林斯词典

• N-COUNT 螺旋形;螺旋体
  Ahelixis a spiral shape or form.
  1. Coil the fibre into a helix.
     将纤维卷绕成螺旋形。

英英释义

noun

• a structure consisting of something wound in a continuous series of loops
  1. a coil of rope
  Synonym:coilspiralvolutewhorl
• a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
  Synonym:spiral

双语例句

• Deoxyribonucleic acid ( DNA for short) is a kind of germ plasm with the structure of double helix.
  脱氧核糖核酸（简称DNA）是生物体内的一种具有双螺旋结构的遗传物质。
• DNA double helix, secondary structure of RNA, and elements of protein folding;
  DNA双螺旋线，RNA（译注：核糖核酸，下同）的二级结构和蛋白质折叠基元；
• The triple helix theory come forth after national innovation system.
  三螺旋理论是继国家创新系统之后新出现的理论模型。
• It provided strong evidence of the structure of D-N-A as a double helix.
  它为脱氧核糖核酸结构呈双螺旋线提供了有力证据。
• Helix formation of an open central space, light from the round glass top layer.
  螺旋的中部形成一个敞开的空间，从玻璃圆层顶采光。
• From the STMimages, we could see clearly the helix pitch and helix diameter of helix structure.
  由STM图象中我们能清晰地观察到螺旋结构的螺距与螺径。
• Genes are segments of the DNA double helix that encode the information for making proteins.
  基因是一段DNA双股螺旋，其中携带了制造蛋白质的编码资讯。
• Ten machining origins may be set by straight line, arc, helix and parabola.
  直线、圆弧、螺旋线及抛物线可设定10个加工原点。
• Some biological molecules have the form of a helix.
  有些生物分子呈螺旋状。
• Any of several inedible snails of the genus Helix; often destructive pests.
  螺旋属中的几种不能食用的蜗牛；是经常具有破坏性的害虫。