... 钟斗装料装置：bell and hopper arrangement 钟表黄铜：clock brass 终温度：finishing temperature ...
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Lead can improve the cutting performance; brass this easy cutting brass used as watch &clock parts.
铅能改善黄铜的切削性能﹔这种易切削黄铜常用作钟表零件。
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Highlights include a 19th-century mantel clock that shows a magician who moves a cup to reveal various hidden objects and a Victorian brass skeleton clock built to look like Westminster Abbey.
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