| Chinese | English |
| 化学添加 | chemical addition Chemical reaction in which one or more of the double bonds or triple bonds in an unsaturated compound is converted to a single bond by the addition of other atoms or groups (在一种不饱和化合物的一个或多个双键或三键在添加其它原子或分子的条件下被转化成单键的化学反应。) |
| 添加剂 | additive Substances mixed in small quantities with another product to modify its chemical or physical state. Additives are used to make food look visually more attractive, in the case of colouring agents, as well as to preserve and extend the life of the product (少量混合在另一种物质中以改变其化学或者物理状态的物质。添加剂可使食物看上去更具吸引力(如色素添加剂)，同时也可维持和延长产品的有效保质期。) |
| 燃油添加剂 | fuel additive Substance (such as tetraethyl lead) which is added to petrol to prevent knocking (添加入汽油的物质(如四乙基铅)，以减少爆震音。) |
| 食品添加剂 | food additive Substances that have no nutritive value in themselves (or are not being used as nutrients) which are added to food during processing to improve colour, texture, flavour, or keeping qualities (本身没有营养价值的物质(或者不被用作营养物)，在加工过程中被加入食物，以提高颜色，质地，风味，或保质期等品质。) |
