正在播放:压大压小什么意思
压大压小什么意思
  • 压大压小什么意思

  • 主演: 侯钰铃  迈克尔·巴佛  塔玛·菲利安加  加濑康之  刘嘉璇 
  • 状态:更新至58期
  • 导演:理查德·拉·格拉文斯
  • 类型:科幻片
  • 简介:Black gunpowder is one of the four great inventions of ancient China. Its main chemical components are potassium nitrate, sulfur and carbon. When encountering an open flame, potassium nitrate decomposes and releases oxygen, causing charcoal and sulfur to burn violently, instantly producing a large amount of nitrogen, carbon dioxide and other gases, and releasing a large amount of heat energy, thus forming an explosion.