独有的进料破碎结构，可很方便地实现“石打石”和“石打铁”的转换，既可破碎又可整形。
The unique feeding crushing structure, can be easily realization "stone dozen stone" and "stone iron" conversion, can be broken and plastic.
他补充道，其他经济学家应该“一砖一石”、稳扎稳打地构筑知识。
Every other economist, he added, should be content to build knowledge by steadily laying "stone on stone".
然而，如果我们认为秀丽、耐久性和维护，什么都不可能打大理石和花岗岩。
However, if we think of beauty, durability and maintenance, nothing can beat Marble and Granite.
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