It shows that the technique of low temperature-synthesizing is feasible, and it provides a new method of comprehensive utilization of coal gangue.

同时证明低温合成这一技术路线是可行的，为煤矸石的综合利用寻找到一条新的途径。

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Some economic benefits must be created by the comprehensive utilization of coal gangue, and the unity of environmental and economic benefits can be reached.

通过煤矸石的综合利用，还能产生一定的经济效益，实现环境效益和经济效益的统一。

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