废混凝土
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demolished concrete rubbish
拆除的混凝土垃圾
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Recycled aggregate is made from crushed concrete rubbish which is from demolished concrete building. The aggregate shall not be used until it is graded.
建筑物或构筑物解体后的废弃混凝土经破碎、分级成为混凝土集料，称为再生混凝土集料。
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