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??????,???:?? 15889395286, QQ:1912682229,???:??? -------- ?????/??/??/??/??????? ???????????????????????????? ??????????????????????LCR????? ?????????????????????????????? PCI-GPIB???!!???????????? ---- ?????????Agilent???????Tektronix???????(fluke)? ????????ROHDE&SCHWARZ(R/S)????????ADVANTEST?? ??????Maconi???????(Keithley)??????LeCroy?? ???????micronix??????(??)?Anritsu???????HIOKI?? ?????Kenwood???????Hameg???????HITACHI??????(Kikusui)? ?????Iwatsu??????(Yokogawa)???NI?National Instruments?? ?????LEADER???????Panasonic??????????