substratum

汉语翻译

n. 基础, 根据, 下层, 基层, 基质, 培养基, 胶层
【计】 基底
【医】 酶作用物, 酶解物, 底质; 下层, 基层, 低层

词型变化：

形容词:substrative 名词复数:substrata 

英语解释：

名词 substratum:

1. a surface on which an organism grows or is attached
   同义词：substrate
2. any stratum or layer lying underneath another
   同义词：substrate
3. an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population
   同义词：substrate