西安普众安康为您推荐：必须戴安全帽（Must wear safety helmet）标志设置范围和地点是头部易受外力伤害的作业场所，如：矿山、建筑工地、伐木场、造船厂及起重吊装处等。
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... 必须戴安全帽 Head Protection Must Be Worn 必须系安全带 Seat Belt Must Be Fastened 安全检查 Security Check ...
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... 对...有着很深的感情 » Has deep feelings for ... 必须戴安全帽 » You must wear a helmet 抗无线电干扰 » Anti-interference of radio ...
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... 分为血清型和分泌型两种 » Divided into serum and secretory-type two 必须戴安全帽 » Must wear a helmet 张角 » Flare angle ...
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必须戴好安全帽 Must wearing safety helmet ; Must wear helmets
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