If you want to time your running and walking intervals, you can use a watch or other device that beeps to signal when you need to switch.

如果你想对跑步和步行的间隔计时的话，你可以用一个手表或者其他能够发出哔哔声信号的设备当你需要转换的时候。

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This test system is realized by real-time automatic loading commands of operational input and train running simulation, simulating field signal equipment.

该系统是通过实时自动地加载操作输人命令、列车运行仿真命令以及现场信号设备的实时仿真来实现自动测试的。

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New type of professional IRD, by running the software for preventing the illegal interfering signal, IRD analyzes the characteristic of satellite DTV signal in real time, then found external illegal.

新型专业卫星数字电视解码器(IRD)通过运行防止非法信号干扰的软件，实时分析卫星数字电视信号的特征，从而提前发现外来非法干扰信号并实施预警。

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