Waste water which had been purified by ion-exchange resins was recovered for chemicals in silvering solutions.
Just then a sort of brightness fell upon me in the barrel, and looking up, I found the moon had risen and was silvering the mizzen-top and shining white on the luff of the fore-sail;
The hazard of waste water from silvering blanks of vacuum bottles as well as its sources were described.
Except in the process of chemical silvering I know absolutely nothing about coating.
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