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bell jar的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Noun:
-
a bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases
bell jar的用法和样例：
例句
- If air weren't admitted into the bell jar, the electric bell in the bell jar would not ring because of a lack of a medium.
如果我们不让空气进入铃罩，铃罩中的电铃一定会因缺少介质而不响了。
