acceleration voltage alternation的用法和样例：
- The equations of the accelerating voltage and its flattop versus parameters of the cell are given.
- The main circuit of a dual voltage alternator is given and its principle is discussed.
- There is dependence between e/m error and accelerating voltage or focus voltage in the measurement of e/m by magnetic focusing method.
- In order to minimize evaporation and loss of Mg, the considerable increasing of accelerating voltage, beam current and welding speed is preferred.