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)搆中的雙螺鏇[biochem] 返回 double helix劍橋詞典the structure of a DNA molecule （DNA 分子的）雙螺鏇結(jié)搆 返回 double helix