n. 层, 地层, 阶层[医] 层
n. one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)
以上参考资料就是本词典详细汇总的词语stratum是什么意思的翻译解释，如有错漏请向我们提供反馈意见。
