{
  "doc-5a9f08b3c625e6554648e7b3b22438da": {
    "content": "硝酸光照分解的方程式\n 4HNO_{ 3 }   begin{array} {}   {underline{ Δ }}    或光照   end{array} 4NO_{ 2 }  ↑+O_{ 2 }  ↑+2H_{ 2 }  O"
  }
}