a sweet colorless, viscous, hygroscopic liquid used as an antifreeze and in brake fluid and also as a humectant in cosmetics and personal care items although it can be absorbed through the skin with harmful effects
双语例句
A new process of Hydration of propylene oxide to glycols was introduced. 采用反应精馏新工艺由环氧丙烷水合制丙二醇。
The smoker inhales doses of nicotine vaporized with the help of a solvent such as propylene glycol. 尼古丁溶解在丙二醇等溶剂中，挥发后被吸烟者吸入。
