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stratum  
词性及解释
  • n.
    层, 地层, 阶层
  • 【医】
词形变化
形容词: stratal 名词复数: strata
英英解释
  • 1.
    n.one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)
常用词组
例句
  • 1.
    But the stratum division was based on several AMS 14C-ages which were coincided with the stratum sequences.
    但地层划分的依据是与地层沉积顺序完全一致的数个14C测年。
  • 2.
    To form bends In(a stratum of rock.
    地层褶曲(在地层的岩石上)形成弯曲
  • 3.
    Tramps are In a low stratum of society.
    流浪汉生活在社会的下层。
  • 4.
    A thIn,leaflike layer or stratum occurrIng especially In metamorphic rock.
    叶形线薄的叶状地层,尤其出现于变质岩中
  • 5.
    Tramps are from the lowest stratum of society
    流浪汉来自社会最下层。
  • 6.
    A sterile stratum overlying a stratum bearing traces of the culture being studied.
    贫瘠的岩层覆盖在有研究价值的文化层之上的废石土层
  • 7.
    A bend in a stratum of rock.
    地层折曲岩石地层的褶曲
  • 8.
    A region or stratum distinguished by composition or content.
    地带以构成成分和含量来区别的区域或地层
  • 9.
    A superior stratum of rock
    上部岩石层.
词汇级别

小测验:选择正确的单词

stratum means:
  • A.ldayer
  • B.rdoundness
  • C.sdpigot
  • D.adttribution

浏览历史

其他托福英语单词

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    a. 野蛮的, 残暴的, 粗野的...
  • dossal
    n. 幔布, 缎帐...
  • disseminate
    vt. 散播, 传播, 宣传 vi. 广...
  • lacteal
    a. 乳的, 乳状的, 输入乳糜的 n....
  • oppress
    vt. 压迫, 压抑, 使烦恼...

相关参考

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