目前火炮用的发射药都是固体火药。弹丸和发射药组装在一起,即所谓的炮弹。固体发射药是一种具有固定形状、燃烧速度很快的化学物质,而液体发射药是一种没有固定形状的化学物质。液体发射药火炮使用液体发射药,平时发射药与弹丸分开保存,发射时同时装填。随着现代 At present, artillery propellant is a solid gunpowder. Projectile and propellant assembled together, the so-called shells. A solid propellant is a fixed-shaped chemical that burns very quickly, while a liquid propellant is a chemical that has no fixed shape. Liquid propellant artillery using liquid propellant, usually propellant and projectile separately stored, firing at the same time filling. With the modern