When I grew a little bigger, I went out to collect the wastecopper, iron, and broken glass to sell.
再长大些，我就拣些废铜烂铁和碎玻璃什么的去卖。
2
This study is aimed at finding a new process for removing as, Sb and Bi from copper electrolyte and making a comprehensive use of wastecopper materials.
本试验研究旨在寻求铜电解液净化脱除砷、锑、铋，同时兼顾废铜料综合利用新工艺。
3
Cuprous oxide and zinc oxide can be recovered from wastecopper catalyst by a wet process. The principle and the optimum conditions of the process have been studied.