本发明属于胶片洗印水洗水中痕量银回收方法的改进。

This invention relates to an improvement of recovering trace Ag from waste developing and printing liquor of film.

youdao

电子垃圾中的材料包括铁、铜、金、银和铝，这些材料可以被重复利用、转售、废物利用或回收。

The materials from e-waste include iron, copper, gold, silver, and aluminum materials that could be reused, resold, salvaged, or recycled.

youdao

没回收一百万台手机，可以回收75磅的金子，772磅的银，33磅的钯以及35,274磅的铜。

For every 1 million cell phones recycled, we can recover 75 pounds of gold, 772 pounds of silver, 33 pounds of palladium, and 35, 274 pounds of copper.

youdao