哈勃接地电流计 Harbers earth current ammeter

哈伯接地电流计 Harber's earth current meter

地磁场电磁海流计 geomagnetic electrokinetograph

通地漏泄电流计 earth leakage current meter

电地磁流量计 geomagnetic electro kinetograph

释义通地漏泄电流计 earth leakage current meter

地电流指示计 terrestrial ammeter

电流计地震仪 galvanometric seismograph