英语词汇“pithball”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pithball
释义	pithball pithball (ˈpɪθˌbɔːl) n (General Physics) physics history a small ball of pith suspended on a thread inside an early type of electroscope that would indicate the presence and strength of electric charge in an object near or touching it
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