Thermite is aluminum powder and a metal oxide which produces an aluminothermic reaction known as a thermite reaction.
铝热是铝粉,一种金属氧化剂,能产生我们所谓的铝热反应。
英语百科
Thermite
Thermite is a pyrotechnic composition of metal powder fuel and metal oxide. When ignited by heat, thermite undergoes an exothermic reduction-oxidation (redox) reaction. Most varieties are not explosive but can create brief bursts of high temperature in a small area. Its form of action is similar to that of other fuel-oxidizer mixtures, such as black powder.