However, no matter which kind of hedge model or hedge strategy is adopted, it is totally considered that hedge ratio will vary with time.
然而，没有哪种模式或对冲避险策略是通过此事，认为这是完全套期保值比率会随时间而改变。
2
This software can accomplish the configuration, debugging and building of single-loop control system, series control system, ratio control system, and can upload strategy files to other controllers.
该软件能实现单回路控制系统、串级控制系统、比值控制系统的组态、调试和生成，并能进行策略文件的下装。
3
This strategy has the length and bit rate of the video as its parameters, increasing the admission ratio and decreasing the admission delay.