一位亚洲专业人士手持并使用装有化学物质的背包式喷枪消毒剂，在干净的工业大厅内，并穿着白色防护服 免版税库存照片 一位亚洲专业人士手持并使用装有化学物质的背包式喷枪消毒剂，在干净的工业大厅内，并穿着白色防护服
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