The method has been successfully applied to the separation enrichment of silver in ores and dust fumewith recovery of over 99.2%. results are satisfactory.
用该法已成功地应用于分离富集矿物、灰尘中的银，其回收率在99.2%以上，结果相当满意。
2
As I said, it's a particularly hazardous substance and is worked with in fume hoods.
就像我说过的，这是尤其有害的物质，在通风柜中才能用。
3
As I said, it's a particularly hazardous substance, this is worked with in fume hoods.