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    Retrospective history the first elevator
    Date:2013-07-12

    The elevator has entered the 150 years of our lives, into the star of the 1.5 century, groundless talk, turn the world upside down change, the only constant is the lift we improve the quality of life of commitment.

    In 1854, the World Expo held in New York, the Americans Eliza Graves Otis first to show his invention. He stood on the lifting platform decoration goods, orders his assistant to pull the platform to the audience can see height, and then sends a signal to the assistant with the axe, the pulling cable for elevator. Surprisingly, the elevator did not crash, but firmly fixed in the air - lift safety device Mr. Otis invented play a role. "Everything is safe, gentlemen." People standing on the elevator platform on the Otis to watch waved around mr.. This is the first in human history, lift.

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    欧美日日澡夜夜澡a片免费