The second inner function applies the ticker and price to the business rule function!
第二个内部函数再将股票代码和股价传递给业务规则函数！
The apply_biz_rules function maps an inner function to each ticker/price pair within the market data.
apply_biz_rules函数将一个内部函数映射到市场数据中的每一对股票代码/股价。
The apply_biz_rules function maps an inner function to each ticker/price pair within the market data.
apply_biz_rules函数将一个内部函数映射到市场数据中的每一对股票代码/股价。
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