英语词汇“bell jar”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	bell jar
释义	bell jar noun A bell-shaped glass cover used in a laboratory, typically for enclosing samples.A one gramme weight is placed on the scale pan of an electronic balance and the balance is covered by a glass bell jar.... In the white void opposite, he has placed a glass bell jar containing an auction hammer. I think there's a great deal of misunderstanding about what emptiness is, the idea that emptiness is something that happens under a bell jar when you exhaust all the air from it.
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