同时，文章还引入了表示市场参数的亚变量。
The article also employs a control parameter: a dummy variable.
这方面的工作对于定义当前市场参数和支撑结构以及未来支撑水平非常重要。
This effort is important to define the existing marketing parameters and support structures as well as future levels of support.
每个期货市场都有自己的合约规范，其中详细说明了市场参数，如，符号，价格变动单位等。
Each futures market has its own contract specifications, which detail the market parameters, such as the symbol, and the tick size.
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