| 释义 |
〔galvanoscope〕An instrument used to detect the presence and determine the direction of electric currents by the deflection of a magnetic needle.验电器：一种利用磁针的偏传检测电流存在及测定其方向的仪器〔electroscope〕An instrument used to detect the presence, sign, and in some configurations the magnitude of an electric charge by the mutual attraction or repulsion of metal foils or pith balls.验电器：用于如下目的的一种仪器：检验物体是否带电，指示物体是否带电，通过金箔条或木球的互相吸引或排斥测量电荷的强度 |