substratum
美 [ˈsʌbˌstrɑtəm] 
英 [ˈsʌbˌstrɑːtəm]
- n.（尤指岩石或土壤的）下卧层；底土层
- 网络下层；底层；基质
词形变化
复数：substrata
英汉双解
1. | （尤指岩石或土壤的）下卧层；底土层a layer of sth, especially rock or soil, that is below another layer |
英汉解释
n. | 1. 【生化】培养基;基质;【农】下层土;底土,心土;【摄】(胶片片基与乳剂间的)胶层 |
英英解释
例句
There is no human nature in the sense of a biologically fixed substratum determining the variability of socio-cultural formations.
如果说，生物性的固定基础可决定各种多样的社会文化组成，那麽人之天性也就不存在了。
epipsammon Organisms living on the surface of a sandy substratum or on the surface of the sand particles.
沙面生物生活在沙下层土壤的表面上的生物或在沙粒的表面上。
Potential of an ancient village field consists of two parts, i. e. the potential of settlement field and potential of substratum field.
场可以用物理量“势”来计算，古村落场的势由聚落场的势和基质场的势构成。
Seasonal reproduction of marine sessile organisms may be an adaptation of seasonal variation in suitable substratum availability.
中文摘要海洋生物年周期性的生殖行为可能是为了天然底质年周期性变动的一个适应结果。
Its syntax, many grammatical features, a number of phrases and the style of a typical sentence do betray an important Slavic substratum.
它的句法，许多语法特点，一些短语和典型句子的风格确实透露了重要的斯拉夫语基础。
They come at least in pairs, one serving as substratum for the other.
他们至少都是成双成对，互为对方的次阶层。
The substratum's colour is still purple for no acid producing in bacillus depressant section.
细菌被抑制的区域，无酸产生，培养基仍为紫色。
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。
It may be brunk solely of drunk with other beverage. It can be used as the best substratum of spirit.
伏特加是一种纯净酒，它可以单独饮用或者混合饮用，也可以作为各类饮料酒的最好酒基。
They proliferate and migrate randomly on the substratum and then align and finally form multinucleated myotubes.
他们增殖和迁移的基质上，然后随机调整，最终形成多核肌管。
For soft substratum, dig out the top layer (5 - 10 cm thick), sort out the animals, identify and count them.
若是软基质，用小铲挖出表面5-10厘米厚的基质，找出砂泥中的动物，点算和鉴定。
It finds out some substratum words of Wu dialect.
找出了一些残存的吴方言底层词语。
A substratum of war stirred within her.
一种备战的意图在她的心里起伏。
In order to prepare different CNT-CMEs, we changed the catalyst content in graphite substratum by changing impregnating time and numbers.
改变浸渍时间和浸渍次数得到不同石墨基底，得到的CNT-CME的电化学性能有很大的不同。
There is a broad substratum of truth in it.
这其中有广泛的事实做基础。
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
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
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
Counterforce Distribution of Individual Substratum on Different Rock Foundation
不同岩基上独立基础基底反力分布的研究
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
A Study on Purification of the Eutrophic Water Body with Economical Plants Siollessly Cultivated on Artificial Substratum
利用人工基质无土栽培经济植物净化富营养化水体的研究
Application of Rolled Concrete Substratum in Expanding Project of Beijing-Zhuhai Expressway
碾压混凝土基层在京珠高速公路扩建工程中的应用
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
Discussion on the Modification of Characteristic Value of Bearing Capacity for Weak Substratum
软弱下卧层承载力特征值修正的探讨
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
Advertent Problems in the strength Checking Computation of Soft Substratum
验算软弱下卧层强度时应注意的问题
Proportion Test of Substratum of Container Seedlings in Citrus Greenhouse
柑橘大棚容器育苗基质配比试验
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
Chonaikai: Substratum Organization in Contemporary Japan
町内会：当代日本基层社区组织
Optical Polishing and Test Technology of Superpolishing Mirror Substratum for Laser Gyroscope
激光陀螺超光滑反射镜基片的光学加工和检测技术
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
Loading Preconsolidation Effect of Extra-thick Dredger Fill for Its Soft Soil Substratum
超厚冲填土对其下卧软土层的堆载预压效应
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
Research on Refilled Soil packed Substratum Design Thinking
换填垫层法设计思路初探
provide additional stability to the trees in the soft unstable substratum by broadening the tree base
是用来扩阔树基，从而稳定了在松软泥土上生长的红树。
Comparison Test of Substratum and Soil Cultivation in Cherry Tomato
樱桃番茄基质栽培与有土栽培比较试验
Effect of different organic substratum recipe on yield and quality of cherry-tomato
不同有机基质配方对樱桃番茄产量及品质的影响
The Wu dialect substratum and history reflected in Tongtai dialect
通泰方言的吴语底层及历史层次
Study on Organic Substratum Fertilizer Recipe
有机基质肥料配方试验
Effect of Different Substratum on Cucumber Cultivated in Sack
不同基质对袋培黄瓜的影响
