名词
中文翻译：磁选机
同义词：
['magnetizer', 'magnetic sorter']
例句：
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1. The magneticgrader is used to separate iron fromnon-ferrous metals.
磁选机用于将铁与非铁金属分离。
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2. The magnetic grader has a powerfulmagnet that can pick up small objects.
磁选机有一个强大的磁铁，可以捡起小物品。
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3. Themagnetic grader was designed toimprove the efficiency of the mining process.
磁选机被设计用来提高采矿过程的效率。