... crushed stone ==> 破碎石块 crushed stone aggregate ==> 碎石骨料 crushed stone base course ==> 碎石底层 ...
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aggregate crushed stone 级配碎石
crushed stone aggregate
碎石骨料
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Concretes of C30 and C60 were prepared with iron mine tailings as fine aggregate and coarse aggregate and with natural sand and common crushed stone separately.
分别以铁尾矿砂和铁尾矿石代替天然砂和普通碎石配制了C30和C60两个强度等级的混凝土。
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