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| ブックス | The movement of the upper one was shown by an index, that pointed to the right or... の書籍検索結果 |
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| ブックス | The movement of the upper one was shown by an index, that pointed to the right or... の書籍検索結果 |
 The movement of the upper one was shown by an index, that pointed to the right or to the left according to the direction of the motion.  Mechanics' Magazine - 441 ページ 1854 全文表示 -
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