bell jar

English

bell jar (sense 1)

bell jar (sense 2)

bell jar (plural bell jars)

A piece of laboratory equipment used for creating vacuums, often made of glass in a bell-like shape.
A bell-shaped glass used to cover and protect items such as food.

单词	bell jar
释义	bell jar English bell jar (sense 1) bell jar (sense 2) Noun bell jar (plural bell jars) A piece of laboratory equipment used for creating vacuums, often made of glass in a bell-like shape. A bell-shaped glass used to cover and protect items such as food. Further reading bell jar on Wikipedia.Wikipedia
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