请输入您要查询的英文单词:

 

单词 molecular sieve
释义

Definition of molecular sieve in English:

molecular sieve

noun
  • A crystalline substance (especially a zeolite) with pores of molecular dimensions which permit the passage of molecules below a certain size.

    分子筛

    Example sentencesExamples
    • Butylated hydroxytoluene was added to the reaction mixture to prevent oxidation, and molecular sieves were added to keep the solvent dry.
    • They have anchored bimetallic catalysts to the insides of such molecular sieves and have found that they can selectively hydrogenate cyclic polyenes.
    • Since DNA molecules have much higher molecular weights than proteins, the molecular sieve used in electrophoresis of DNA must be different as well.
    • Various jelly-like substances can act as molecular sieves.
    • Zeolite molecular sieves can also segregate molecules of the same size but different electrical characteristics.

Definition of molecular sieve in US English:

molecular sieve

noun
  • A crystalline substance (especially a zeolite) with pores of molecular dimensions which permit the passage of molecules below a certain size.

    分子筛

    Example sentencesExamples
    • Butylated hydroxytoluene was added to the reaction mixture to prevent oxidation, and molecular sieves were added to keep the solvent dry.
    • Various jelly-like substances can act as molecular sieves.
    • Zeolite molecular sieves can also segregate molecules of the same size but different electrical characteristics.
    • Since DNA molecules have much higher molecular weights than proteins, the molecular sieve used in electrophoresis of DNA must be different as well.
    • They have anchored bimetallic catalysts to the insides of such molecular sieves and have found that they can selectively hydrogenate cyclic polyenes.
随便看

 

英汉双解词典包含464360条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/2/21 10:34:45