recycled aggregate短语¹⁴⁴⁹⁷²⁺² 基本例句 再生骨料 This thesis mainly deals with the technology for high quality recycled concrete aggregate and the mechanical properties and durability of concrete with high quality recycled aggregate. 本文主要针对高品质再生骨料的生产工艺及高品质再生骨料混凝土的力学性能和耐久性进行了较为系统地研究。 qk114