以市场调节为主 用英语怎么说？

mainly based on market regulation

Will be mainly based on the market mechanism itself.这个是经济学中的不以干预，以市场自己的力量去调节为主

你问问题没问清楚哦，那句话可以从很多不同角度去理解的。。

To market regulation

Focus on / based on market regulation