QGS：优质金银

英文缩写词QGS的例句

1. " The1st China printing & packaging products quality prize " gold and silver award for carton box.
2. 包装盒获第一届中国包装印刷产品质量评比金、银奖；
3. Provisional Rules of Quality Inspect in Gold & Silver Jewelry
4. 金银饰品质量检验暂行规定
5. Sulphur dioxide-air method, applied as secondary treatment technology, not only assures that the quality of discharged wastewater are up to standard, but also can recover such metals as gold, silver and copper, therefore it obtains integrated economic benefits, social benefits and environmental benefits.
6. 采用二氧化硫-空气法进行二次处理，不仅保证了废水达标排放，还可回收金、银、铜等金属，实现了经济效益、社会效益和环境效益三者的统一。