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What is a bell jar?

Answer:

A bell jar is a bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases. A more scientific definition is: a glass, quartz, or stainless steel chamber used to isolate substrates in a subatmospheric environment for deposition or etch.

First answer by Thematt92. Last edit by Thematt92. Contributor trust: 23 [recommend contributor recommended]. Question popularity: 10 [recommend question].

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