undulatory theory
常见例句
- In the foundation of cycle undulatory theory, the booming theory founded the booming index, using it to monitor the influence of macroscopic economy by cyclical undulation.
而景气理论则是在周期波动理论的基础上，构建景气指数来监测宏观经济受经济周期波动的影响。 返回 undulatory theory