ac plate current的用法和样例：
- Financial plate current or 2.1 percent, down from the intraday high.
- We match tubes to be within 5% of measured plate current (that is, the tubes won't differ from each other by more than 5%, or 1 milliamp in 20).
- "Are the plating current and programs used documented on traveler?
- "Do the plating current and program used match the design and traveler? What is the ASF range used during plating? Who determines ASF? How?