Joke Collection Website - Talk about mood - Gunpowder English
Gunpowder English
Gunpowder is mainly used as the propellant of bullets and shells, the propellant of rockets and missiles and the energy source of other driving devices in the military, and it is an important part of ammunition. Gunpowder is one of the four great inventions in China. With its lethality and shocking power, it has brought the functions of stopping hostile actions and security defense to mankind, and it is an important invention of human civilization.
Precautions:
China invented gunpowder in ancient times by mashing three kinds of raw materials, grinding them into powder and mixing them to make mixed gunpowder. There are many raw materials for modern gunpowder, such as picric acid, potassium chlorate and nitroglycerin. Gunpowder refers to explosives caused by sparks, flames, etc. It is widely used in the military, mainly used as propellant for bullets and shells, propellant for rockets and missiles and energy for other driving devices.
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