Bell jar

A bell jar is a glass jar, similar in shape to a bell, and can be manufactured from a variety of materials (ranging from glass to different types of metals). Bell jars are often used in laboratories to form and contain a vacuum; they may also serve as display cases or transparent dust covers.

单词	Bell glass
释义	Bell glass 英语例句库 Vessels : bell glass, flume, airer, alcohol burner, reagent bottles etc. 钟罩、水槽、干燥器、酒精灯和各种规格试剂瓶。英语百科 Bell jar A bell jar is a glass jar, similar in shape to a bell, and can be manufactured from a variety of materials (ranging from glass to different types of metals). Bell jars are often used in laboratories to form and contain a vacuum; they may also serve as display cases or transparent dust covers.
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Bell glass

Bell jar