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  1. 粉末冶金 相關
  1. Powder metallurgy - Wikipedia

    Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powders.PM processes can avoid, or greatly reduce, the need to use metal removal processes, thereby drastically reducing yield ...

  2. Doramad Radioactive Toothpaste - Wikipedia

    Doramad Radioactive Toothpaste (Doramad Radioaktive Zahncreme) was produced in Germany by Auergesellschaft of Berlin from the 1920s through World War II. Development The toothpaste was slightly radioactive because it contained small amounts of ...

  3. List of Doraemon (1979 TV series) episodes - Wikipedia

    This article provides a list of the 1787 episodes and 30 specials of the version of the Japanese anime Doraemon that began airing in 1979 and stopped in 2005, when it was succeeded by the 2005 series EP# Air Date Episode Name Japanese Name Plot ...

  4. List of Doraemon (2010–2014) episodes - Wikipedia–2014)_episodes

    Transcription: "okanenoiranaisekai" (Japanese: お金のいらない世界) November 28, 2014 () 657 "The Day Dorami Was Born" Transcription: "Dorami no umaretahi" (Japanese: ドラミの生まれた日) December 5, 2014 () 658 ...

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  1. 粉末冶金 相關