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pitch seam短语解释_pitch seam词组用法_pitch seam短语词组_流逝汉英词典
流逝汉英词典

pitch seam

P 开头单词

短语词组

    短語

  • high pitched seam 大傾角煤層
  • High -pitched critical angle seam 大傾角臨界角
    • 返回 pitch seam