为研究单纯的反流理论奠定了基础。的翻译：Laying a foundation for research on simple reflux theory. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Reflux for the study of simple theories laid the foundation.

Laying a foundation for research on simple reflux theory.

In order to study the pure reversed current theory to lay the foundation.

to study a simple anti-flow theory laid the foundation.

Laying a foundation for research on simple reflux theory.