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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It was a Warne-style ripper that eventually did for the England captain, although Doctrove should have seen that the ball had struck the pad outside the line of off-stump.

BBC: Test abandoned after ball dispute