A type of self-shield metal wire for hardfacing is studied in the paper.

  • 研制了一种自保护金属芯堆焊药芯焊丝.

  • 互联网摘选 2025-01-20 13:03:22

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