triple helix的用法和樣例：
例句
- The CD spectra showed that the addition of glycerol to the collagen did not damage the native triple helical structure of collagen.
圓二色譜表明，甘油的加入沒有改變膠原天然的三股螺旋結構。 - For two complementary strands of nucleotides, the free energy is minimized when they pair up to form a double helix.
就兩股互補的核苷酸分子而言，配對形成一條雙股螺旋時的自由能會最低。
