名词
中文翻译：中央研磨机
同义词：
['central grinding machine', 'centre grinder例句：1. This central grinding machine is used for grinding metals.（这台中央研磨机用于磨金属。）']
例句：
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1. This central grinding machine is used for grinding metals.
这台中央研磨机用于磨金属。
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2. The engineer designed a new central grinding machine to improve efficiency.
工程师设计了一台新的中央研磨机以提高效率。
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3.The central grinding machine has been in use for over 20 years and has proven its durability.
这台中央研磨机已经使用了20多年，证明了它的耐用性。