骨料的制备
Preparation of aggregate
以上为机器翻译结果，长、整句建议使用 人工翻译 。
利用废弃混凝土制备的再生骨料配制混凝土在发达国家已引起高度重视。
The preparation of recycled aggregate concrete by using waste concrete has been highly valued in developed countries.
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对硬壳浮石骨料混凝土的制备工艺进行了研究。
A series of research on preparation technique of hard-shell pumice concrete are researched.
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