But in the late nineteenth century, that panoply of possibilities began to fall away with the arrival of a totally new kind of material - celluloid, the first man-made plastic.
但到了十九世纪末，那种盛况随着一种全新材料的兴起而衰落，这就是赛璐珞，第一种人工合成的塑料。
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The racks, as tall as a man, were invented in the nineteenth century to solve the problem of the sediment that forms in the bottle as a result of fermentation.