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

• 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。
• In this close-up the DNA is seen as a long twisted molecular ladder, the double helix.
  在这个距离上，DNA看起来像一条长长的扭曲的的分子梯，也就是双螺旋结构。
• The constant angle at which a helix cuts the elements of a cylinder or cone.
  一个螺旋状物切割圆柱体或圆锥体的某些部分而形成的连续的角。
• This paper focuses on the optimal pitch arrangement in double-side heating once-through steam generator with helix tube inside.
  本文主要研究了带内螺旋缠绕管的管套管双面加热直流蒸汽发生器元件中沸腾段内螺旋管螺距设置的优化问题。
• The formulation of the helix angle of the device with tapered thread is deduced.
  推导了锥螺纹的螺旋升角计算公式。
• Coil the fibre into a helix.
  将纤维卷绕成螺旋形。
• 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。
• In other words such a molecule is pictured much as if it were a conducting helix.
  换句话说，这样一个分子的图象很像一条导电的螺旋线。
• The alpha helix is found in muscle protein and keratin.
  α螺旋存在于肌肉蛋白和角蛋白中。
• 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。