VDR certified conference

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VDR certified conference

VDR certified conference
VDR certified conference

VDR certified conference
“压敏电阻是中国大陆的名词,意思是"在一定电流电压范围内电阻值随电压而变",或者是说"电阻值对电压敏感"的阻器.相应的英文名称叫“Voltage Dependent Resistor”简写为“VDR”.
应该是VDR鉴定会议.