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substratum
[ˈsʌbstrɑːtəm] [ˈsʌbstreɪtəm]

  • n. 基础;根据;下层

[ 复数 substrata或substratums ]

专业释义英英释义

  • 底土,心土,下层土
  • 实体
  • (胶片等的)感光底层
  • 下层语言[参较 superstratum]
  • 底物,酶作用物
    基质,培养基

·2,447,543篇论文数据,部分数据来源于NoteExpress

substratum [ ,sʌb'streitəm, -'strɑ:- ]

  • n.
    • a surface on which an organism grows or is attached

      同义词: substrate

    • any stratum or layer lying underneath another

      同义词: substrate

    • an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population

      同义词: substrate

以上来源于: WordNet

 柯林斯英汉双解大词典 

substratum /sʌbˈstrɑːtəm, -ˈstrætəm/

  • 1. 

    N-COUNT A substratum of something is a layer that lies under the surface of another layer, or a feature that is less obvious than other features. 底层 [正式] [with supp, usu N 'of' n]

    例:

    ...its deep substratum of chalk.

    ...它的深层的白垩底土。

双语例句

  • The Sanjianfang Formation's oil reservoir can be divided into 24 substratums in detail on sedimentary cycle and sedimentary rhythmic character of reservoir.

    沉积沉积韵律特征三间房组油藏进一步细分为24个小层。

    youdao

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