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

• 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。
• 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 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。
• 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。
• 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；
• 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。
• They find a third, separated strand in the center of the double helix.
  他们发现了第三条，在双螺旋体中心的单独条。
• Mixing drum; Helix angle; Numerical simulation;
  搅拌筒；螺旋升角；数值模拟；
• This paper gives a quantitative analysis and comparative research which based on data mining for SCI2000 and Triple Helix Algorithm.
  引荐了这方面的一个基于SCI2000的数据挖掘后，在三重螺旋算法下的定量规范性研究，并进行了相应国别区域比较分析。
• 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。