Electroscope

[i'lektrәskәup]

解释:

(noun.) measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign.

校对:尼古拉斯--From WordNet

解释:

(n.) An instrument for detecting the presence of electricity, or changes in the electric state of bodies, or the species of electricity present, as by means of pith balls, and the like.

亚伯整理