Comment wbnonmetal SNF 2012-11-13 11:25:04: Photoresistor in left tank, acid near the tank

ylyang at snf.stanford.edu ylyang at snf.stanford.edu
Fri Jan 11 13:17:40 PST 2013


there is black photoresistor in the left tank and acid near the both H2SO4/H2O2 tanks.



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