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back bead短语解释_back bead词组用法_back bead短语词组_沉淀汉英词典
沉淀汉英词典

back bead

B 开头单词

短语词组

    短语

  • back -bead width 背面熔宽
  • back bead profile 封底焊道形状
    • 返回 back bead