To use the elements you should prepare the adjustable transformer or silicon controlled transformer voltage meter current meter and autocontrol temperature meter etc.
使用元件必须配备调压变压器或可控硅调压器及电压、电流表和温度自动控制仪表等。
To use the elements you should prepare the adjustable transformer or silicon controlled transformer voltage meter current meter and autocontrol temperature meter etc.
使用元件必须配备调压变压器或可控硅调压器及电压、电流表和温度自动控制仪表等。
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