名词短语
中文翻译：超细金属粉末
同义词：
['ultrafine metal powder', 'ultrafine metal particle']
例句：
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1. The super fine grain of metal is used in the production of high-performance alloys.
超细金属粉末用于生产高性能合金。
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2. The engineer used a super fine grain of metal to make the machine more durable.
工程师使用超细金属粉末使机器更耐用。
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3.The super fine grain of metal was used as an additive in the paint to improve its performance.
超细金属粉末作为添加剂用于油漆中，以提高其性能。