______是指在循环利用、废弃物处置和危险物质管理方面的物流活动，广义上包括废弃物的源头削减、循环利用、替代利用及重新利用与处置等各方面与物流相关的一切活动。 ______ refers to the logistics activities in the aspects of recycling, waste disposal and hazardous material management. In a broad sense, it includes all activities related to logistics in terms of source reduction, recycling, alternative utilization, reuse and disposal of wastes.