a galvanic battery的用法和样例：
- A galvanic cell is represented by a diagram.
- The new leader had a galvanic effect on morale.
- The new leader had a galvanic effect on our morale.
- Mi- cro- electrolysis is to reduce NO2-- N and TN in waste water and finally to realize denitrification by means of galvanic battery principle.
- This bucket is made from a galvanized iron sheet.