... rock ripper 岩石掘进机 rock roller bit 牙轮钻头 rock salt 石盐 ...
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... pasture ripper 草地松土器 rock ripper 松石器,岩石掘进机... ripper die 修边冲模 ...
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Large - sized crawler dozers normally have a set of claws called a ripper that is installed at the machine's rear end and can crush a hard rock.
通常大型的履带挖掘机尾后部会装有爪型的排状粗齿锯，用于碾碎石块。
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