The only stable solution is the diverging spherical wave.
只有发散球面波才是唯一稳定解。
The voltage requires being smooth and stable sine wave.
其工作电压要求是平滑而稳定的正弦波。
To provide a stable pure sine wave for laboratory testing for all.
提供稳定纯正弦波，以便实验室作各种测试。
Performance stable reliable, realization output wave shape sampling point data memory;
性能稳定可靠，实现输出波形的采样点数据的存储；
Performance stable reliable, realization output wave shape sampling point data memory;
性能稳定可靠，实现输出波形的采样点数据的存储；
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