Two components of the polyether polyurethane systems with water as blowing agent are prepared.

  • 制得了以水作发泡剂的聚醚型聚氨酯鞋底原液.

  • 互联网摘选 2025-01-19 23:19:27

    • 相关例句
    精确
    • 模糊
    • 词首
    • 词尾
    • 词义
    • 例句