This paper mainly describes the universality of water contained in fuels, the actions of water and its heat loss in the fuels, and the essentiality of emulsification of the oil-water mixture.

• 本文主要叙述燃料中含水的普遍性和水在燃料中的作用和热损失，以及油掺水必须乳化的必要性和乳化油应有的颗粒粒径、粘度、破乳温度等技术指标；