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HP 4278A電容計二手 品牌(pai): | 惠(hui)普 | HP HP4278A電容計Agilent4278A 測量(liang)速度(du):6.5ms/10ms/21ms 測量(liang)參數:C-D,Q,ESR,G C-D測量(liang)精度(du):0.07%,0.0005(1kHz,21ms) 0.05%,0.0002(1MHz,21ms)