For Group B, the vitalight lamp radiation and steaming of methanal plus PP were used in combined air sterilization.
紫
灯照射与甲醛加PP熏蒸联合空气消毒为B组。


For Group B, the vitalight lamp radiation and steaming of methanal plus PP were used in combined air sterilization.
紫
灯照射与甲醛加PP熏蒸联合空气消毒为B组。
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