Reasons of forming first cracks were foundry lacuna, impurity gathering , lard exiting.

  • 铸造缺陷 、 杂质元素偏聚和夹杂物的存在是形成早期裂纹源的原因.

  • 互联网摘选 2025-01-18 13:31:11

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