substratum
substratum
英[ˈsʌbstrɑ:təm]美[ˈsʌbstreɪtəm]
n.底层，下层；
复数：substrata;
例句
a level substratum水平的底层
The story has a substratum of truth.这故事有事实的基础.
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.
His re-creation 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。
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。
...its deep substratum of chalk...深厚的白垩地层
同义词
substratum的同义词之：
layerbed柯林斯高阶英汉双解学习词典释义
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.
例句
...its deep substratum of chalk...深厚的白垩地层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。英汉词典释义
n.
底层,下层
a level substratum水平的底层英英词典释义
Noun
1. any stratum lying underneath another
行业词典
医学： 酶作用物，酶解物，底物；下层，基层，底层；
土壤学： 底土层；"土壤剖面下部的土层，或指深厚B层的下部,或指B层与C层过渡的层次，或指母质层。"；
水产： 生长基质；又称“附着基”。海藻和某些贝类生长的附着物。；
