shipyard noise
·2,447,543篇论文数据，部分数据来源于NoteExpress
保护听觉，用于纺织、矿、燃机、机场、船厂、械制造厂等附有强噪声源的工作场所。
Provides hearing protection. ldeal for use in textile, mining, airport, boat plant, mechanical manufacturer, and related fields where serious noise presents.
youdao
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