Study on the theroy and policy for optimizating allocation of coal resource Study on the theory and policy for optimizing allocation of coal resource 并列题名：Study on the theroy and policy for optimizating allocation of coal resource 并列题名：Study on the theory and policy for optimizing allocation of coal resource Study on the support theory and operation efficiency about capitalization of coal resource 并列题名：Study on the support theory and operation efficiency about capitalization of coal resource Study on the theory and policy for coal resource management