substratum

美 [ˈsʌbstreɪtəm]英 [ˈsʌbstrɑːtəm]
  • n.(尤指岩石或土壤的)下层,底层

复数: substrata

substratumsubstratum

noun

【不规则形式】pl. substrata

technical 术语(尤指岩石或土壤的)下层,底层
a layer of sth, especially rock or soil, that is below another layer

substratum

频次

  • 1
    N-COUNT 下层;底层;深层特征;隐性特质
    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.

    ...its deep substratum of chalk...

    深厚的白垩地层

noun

1
an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population
the Celtic languages of Britain are a substrate for English
Synonym: substrate
2
any stratum or layer lying underneath another
Synonym: substrate
3
a surface on which an organism grows or is attached
the gardener talked about the proper substrate for acid-loving plants
Synonym: substrate

数据来源:WordNet

  1. Problems on the Substratum of Ancient Yue Languages in Southern Chinese Dialects

    南方汉语古越语底层问题新探

  2. Chinese is substratum of contact languages . It is also the important factor to change the structure and function of language in the language union .

    处于内核的汉语同时也是接触语言中的底层部分,是促使圈内语言结构和功能变化的重要因素。

  3. His recreation of the city is credible , with a substratum of fact to bolster the fiction .

    他对该城历史的再现是可信的,虚构的小说情节隐念着一些事实作为支撑。

  4. Study and apply for construct pavement substratum use by spreading machine

    摊铺机修筑路面基层技术的研究及应用

  5. Preparation Of Type ⅱ Collagen and Use as Chondrocytes Culture Substratum

    Ⅱ型胶原的研制及其在软骨细胞培养中的应用

  6. The substratum correlation is one of the fundamental techniques in the reservoir geological model .

    小层对比是储层地质模型研究的基本问题之一,由于对比技术难度较大,目前仍由专家进行人工对比。

  7. Experimental Analyses of the Bearing Capacity of Soft Substratum

    下卧软土层承载力的试验分析

  8. Studies of the effects of different growth substratum on the immigration of neural stem cells

    不同生长基质对体外培养神经干细胞迁移的影响

  9. Research on Deformation Behavior of Substratum at Water Blow-up of the Pit

    软土基坑突水基底变形研究

  10. Simplified Consolidation Calculation on Substratum of Ground Improved by Drainage Consolidation

    排水固结下卧层固结度简化计算

  11. Research on Checking Method for Soft Substratum

    软弱下卧层的验算方法探讨

  12. The Technology of Laser WC + Co Cladding on Low Carbon Steel Substratum

    低碳钢表面激光涂覆WC+Co的工艺研究

  13. Solution for One Dimensional Consolidation of Weak Underlying Substratum in Soft Clay Ground

    软土路基软弱下卧层的一维固结问题

  14. Space Distribution of Microorganisms and Substratum Enzymes in Integrated Vertical Constructed Wetland

    复合垂直流构建湿地基质微生物类群及酶活性的空间分布

  15. The best nutrition supply was basic substratum mixed with rapeseed cake liquid .

    营养供给以基本基质加菜籽饼水液为佳。

  16. Displacement Calculation of Plane Elastic Foundation with Rigid Substratum

    具有刚性下卧层的平面弹性地基的位移计算

  17. Analysis of End Bearing Capacity of Large Diameter Bottom-Enlarged Pile in Soft Substratum

    软弱下卧层上大直径扩底桩端承力分析计算

  18. Approaching on the Space of Construction Sedimentation Surveying Research on Checking Method for Soft Substratum

    建筑物沉降时间间隔软弱下卧层的验算方法探讨

  19. Calculating Method Alternation for Substratum Settlement of Cement-Soil Mixing Piles Composite Ground

    水泥搅拌桩地基下卧层沉降计算方法选择

  20. Assessment of Soft Underlying Substratum of Geotechnical Engineering Works

    软弱下卧层地基评价的几个问题

  21. The results show that settlement of embankment is mainly determined by compression of the substratum ;

    结果表明:路堤沉降主要取决于桩端以下软土层的压缩;

  22. No Social Effect of Pollution Technique about Tomato and Lettuce Growth in Organic and Inorganic Substrata

    无公害番茄生菜有机-无机基质培技术的研究

  23. Purification efficiency of low nitrogen and phosphorus concentration with constructed wetland of saline-alkali soil substratum

    盐碱土壤基质人工湿地对低浓度氮磷废水的净化效果

  24. this notion provides us with the ethical substratum of pessimistic tragedy ,

    与此同时,它又发现悲壮悲剧的道德基础,

  25. Variety Screening of Thick-skinned Melon for Organic Substratum Culture in Plastic Greenhouse

    大棚有机基质栽培厚皮甜瓜品种的筛选

  26. 3D interaction analysis of pile-soil-raft considering the consolidation of substratum

    考虑固结过程的桩-土-筏三维相互作用分析

  27. Selection of Substratum Shapes of Spherical Primary Reflection Mirrors

    球面主反射镜基体形状选择

  28. A calculating example shows the calculating precision of substratum settlement is improved by choice for the calculating method .

    算例表明,通过对计算方法的选择,提高了下卧层沉降的计算精度。

  29. Human amnion membrane as a substratum for culture of calf retinal glial cells

    在人羊膜上培养牛视网膜神经胶质细胞的初步探讨

  30. Component of bacteria and their effects on settlement substratum of larvae of scallop

    扇贝幼虫附着基的细菌组成及其作用