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单词 bell jar
释义

bell jar

听听怎么读
英 [bel d?ɑ:]
美 [b?l d?ɑr]
是什么意思
  • 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

    学习怎么用

    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
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