Unlike most of the following patterns, there was no actual code associated with the pattern; it formed the basic conceptual framework for all following implementation.
与下列的大多数模式不同，该模式实际上并没有与之相关的代码；它针对以后的实现形成了一个基本的概念化框架。
Total supply of, and total demand for coal in the market is analyzed based on economics theory and methodology. A basic conceptual framework of coal industry economics has been established.
基于经济学理论和方法对煤炭市场总供给和总需求进行了分析，奠定了煤炭产业经济学的基本概念框架。
Total supply of, and total demand for coal in the market is analyzed based on economics theory and methodology. A basic conceptual framework of coal industry economics has been established.
基于经济学理论和方法对煤炭市场总供给和总需求进行了分析，奠定了煤炭产业经济学的基本概念框架。
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