开滦矿务局

  • 网络Kailuan Mining Bureau;Kailuan Coal Mining Administration
开滦矿务局开滦矿务局
  1. 近十五年来近代开滦矿务局研究综述我比去年冬天时要减轻(加重)将近五磅。

    The Summary of the Research of Modern Kailuan Mining Administration in Recent 15 Years ; I 'm close to five pounds lighter ( heavier ) than I was last winter .