acidic waste etching solution的用法和样例：
- Nanometer copper powders were prepared from acidic waste etching solution containing copper using hydrazine hydrate as a reductive agent.
- Preparation and investigation on the stability of nanometer copper powders from acid waste etching solution containing
- The new method of producing basic copper carbonate from waste etching solution containing copper.
- Waste etching solution containing copper,a type of hazardous waste discharged by PCB manufactories,is a potential menace to the environment.