结论：提出了用煤矸石生产内燃砖的合理化建议，可有效的降低煤矸石砖辐射水平，使之符合国家建材标准。
Conclusion: Make a suggestion for reduce the radiation levels of brick produce containing gangue for which accord with the national standard for building materials.
结论：提出了用煤矸石生产内燃砖的合理化建议，可有效的降低煤矸石砖辐射水平，使之符合国家建材标准。
Conclusion: Make a suggestion for reduce the radiation levels of brick produce containing gangue for which accord with the national standard for building materials.
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