powered air-purifying respiratory protective equipment
送风过滤式呼吸防护用品 powered air-purifying respiratory protective equipment 隔绝式呼吸防护用品 atmosphere-supplying respiratory protective equipment ..
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powered air-purifying respiratory protective equipment
动力空气净化呼吸防护设备
以上为机器翻译结果，长、整句建议使用 人工翻译 。