| 单词 | helix |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔helical〕Having a shape approximating that of a helix.近似螺旋形的，近似螺旋线的美国传统〔helix〕Coil the fibre into a helix.将纤维卷绕成螺旋形。柯林斯高阶〔pitch〕The distance between two corresponding points on a helix.螺旋的间距：螺旋线上两个相应的点之间的距离美国传统〔ring〕Any of the turns constituting a spiral or helix.螺圈：组成螺线或螺旋线的任一个美国传统〔secondary structure〕The protein structure characterized by folding of the peptide chain into an alpha helix, beta pleated sheet, or random coil.二级结构：蛋白质结构，特征是将肽链折迭成α螺旋、β结构或不规则螺旋美国传统〔spiral〕A three-dimensional curve that turns around an axis at a constant or continuously varying distance while moving parallel to the axis; a helix.螺旋：当螺旋浆沿轴转动时，形成的以等距离或不断变化之距离绕轴转动的三维曲线美国传统〔superhelix〕A molecular structure, as of a protein or DNA, in which a helix is itself coiled into a helix.超螺旋：如蛋白质或DNA的一种分子结构，在这种结构中一个螺旋线交缠在另一个螺旋线中美国传统〔term〕They termed the structure a “double helix.” 他们把这个结构叫作“双螺旋”。韦氏高阶A corkscrew is in the shape of a helix.瓶塞起子是螺旋形的。剑桥国际 |
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