1·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。
1·Employing the fundamental principle of linear filter model, an improved simulation method is developed based on a high-order filter model for randomly undulatory sea surface.