utilization of the three wastes的意思|示意

三废综合利用 ...三废综合利用 multipurpose use of the three wastes; multipurpose use of three industrial effluents; multipurpose use of three types of wastes; multipurpose use of three wastes; utilization of the three wastes 森林综合利用 integrated forest utilization ..

三废 "三废"利用