waste rate of material废料率

status of waste of material耗材现状

waste material of chlorosilanes含氯硅烷废料

waste material of slaughtering屠宰下脚料

waste material of pectin果胶粕

waste material of circuit board电路板废料

waste material of the fertilizer化肥废料

salvage of waste material[环境] 废品回收

use of waste material废弃物利用

excretion of waste material排泄糟粕