问题描述：
For your reference regarding BeCu etching in TCL(S) :
For your reference regarding BeCu etching in TCL(S) :
(1) BeCu Etching :
Rough Etching :use 5V
Final Etching :use 0.5 to 1V.
(2) The Ratio of Acid which we bought in Singapore :
Water :Phosphoric Acid (H3PO4)
85% :10-15%
以上内容是是什么意思(中文)?
For your reference regarding BeCu etching in TCL(S) :
(1) BeCu Etching :
Rough Etching :use 5V
Final Etching :use 0.5 to 1V.
(2) The Ratio of Acid which we bought in Singapore :
Water :Phosphoric Acid (H3PO4)
85% :10-15%
以上内容是是什么意思(中文)?
问题解答：
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