基础释义
例句
柯林斯词典释义

福克斯词典 \ 英汉词典 \

substrata是什么意思？

substrata

英[ˈsʌbstrɑ:tə] 美[ˈsʌbstreɪtə]

n. 底土，下层土壤地基，底层，下层( substratum的名词复数 )；

例句

There are substrata competition between the heterotrophic denitrification bacteria and ANAMMOX bacteria when organics the influent. 厌氧氨氧化污泥中存在着异养反硝化菌,有机物的存在会导致其与厌氧氨氧化菌之间的基质竞争.

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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。

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