Yahoo奇摩字典 網頁搜尋

登入
  1. 更多

  1. 你是不是要查

    ultrafine

  1. Oxford American Dictionary

    ultra-fine

    • adj.
      extremely fine in size, texture, composition, etc.
    • 釋義

    形容詞

    • 1. extremely fine in size, texture, composition, etc. the ultra-fine particles emitted by diesel vehicles the fiber in merino wool is ultra-fine