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substratum是什么意思

substratum

英[ˈsʌbstrɑ:təm] 美[ˈsʌbstreɪtəm]

n. 底层，下层；

复数：substrata;

相关单词 substratumof

同义词

substratum的同义词之：
layer bed

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。；

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