noun 下载 🔗分享 摩尔 In the International System of Units, the base unit of amount of substance; the amount of substance of a system which contains as many elementary entities (atoms, ions, molecules, etc.) as there are atoms in 0.012 kg of carbon-12. Symbol: mol. The number of atoms is known as Avogadro’s number. Examples : "The chemist needed 2.5 mol of sodium chloride for the experiment. " 化学家做这个实验需要2.5摩尔的氯化钠。 amount substance unit chemistry physics science element 与AI对话词汇游戏阅读练习
