Next time you need to generate the declaration of a local variable, you can go back to this source and use it as reference.

下一次需要生成本地变量的声明时，您可以回到此源，并以此为参考。

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Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.

固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。

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There were two main part of error source, the local reference system which was about 0.15as and the measurement coordinates of objects which were about 0.45as.

详细分析了主要的误差来源，分别是由参考星决定的局部参考架的误差约0.15角秒，目标量度坐标误差约为0.45角秒。

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