It was thought that the new process for producing glyoxal by oxidizing acetaldehyde with nitric acid should be developed inland, and the urgent task was increasing yield and quality.

  • 认为国内应大力开发乙醛硝酸氧化法生产乙二醛的工艺,目前的迫切任务是提高产量与产品质量。
目录 查词历史