bell jar
英 [bel dʒɑ:] 美 [bɛl dʒɑr]

n.

钟形的玻璃容器或盖子；钟罩；

英英释义

bell jar

• n.a bell-shaped glass cover used to protect and display delicate objects or to cover scientific apparatus or to contain gases

  同义词：bell glass

双语例句

1. 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。

权威例句

Sylvia Plath
Sylvia Plath
An Introduction to Vacuum Technology for the Amateur Scientist
• The Colossus and Other Poems, Heinemann, London, 1960; Alfred A. Knopf, New York, 1962;
Computers in control at Birmingham
GEMS: Galaxy Evolution from Morphologies and SEDs
GEMS: which galaxies dominate the z~0.7 ultraviolet luminosity density?
GEMS: Galaxy Fitting Catalogs and Testing Parametric Galaxy Fitting Codes: GALFIT and GIM2D
STAGES: the Space Telescope A901/2 Galaxy Evolution Survey
Colors of AGN host galaxies at 0.5