Defining a per-CPU variable is done with the DEFINE_PER_CPU macro, to which you provide a type and variable name.

per - CPU变量由define_per_cpu宏进行定义，需要为该宏提供类型和变量名称。

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The capital stock is a fundamental variable for regressing macro production function and forecasting economy in metaphase and long-term.

资本存量是建立宏观生产函数、进行中长期宏观经济预测等宏观经济研究的一个基础变量。

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In the third part analyse the macro and micro environment, the variable of social system and advertising media market.

第三部分分析广告舆论发生的宏观环境和微观环境，即社会系统变量和广告舆论场。

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