柯林斯詞典double helix 1. N the form of the molecular structure of DNA, consisting of two helical polynucleotide chains linked by hydrogen bonds and coiled around the same axis DNA結(jié)構(gòu)中的雙螺旋[biochem] 返回 double helix劍橋詞典the structure of a DNA molecule （DNA 分子的）雙螺旋結(jié)構(gòu) 返回 double helix