Power, test time, record period, voltage lower limit, voltage upper limit, lead internal resistance, operation model, data and time parameter can be set with keyboard.
通过键盘可设置：功率、测试时长、记录周期、电压下限、电压上限、导线内阻、操作模式、日期、时间等参数。
Inputting the characters through keyboard or other equipments and obtaining the internal statement number.
通过键盘或其他输入设备向计算机输入汉字，计算机内部得到的是汉字的机内码。
Sylvain Nahas for instance has an internal network in which one of his machines does not have monitor or keyboard.
举例来说Sylvain Nahas有一个内部网路，其中一台他的电脑并没有萤幕或键盘。
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