It can display the set temperature, control parameters and running of circuit by the keyboard.
可通过键盘，显示电路设定目标温度、控制参数、运行等。
Its parameters can be regulated by keyboard in order to control amplification and cutoff frequency by step.
通过键盘设置参数，实现放大器放大增益步进调节、滤波器带通频率步进调节功能。
The measuring device is equipped with keyboard and the parameters can be set on it.
测量装置设有键盘，可以进行参数的设定。
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