rock breaker

基本解釋

Rock breaker is a multi-functional impact breaking machine.
碎石機是一種多用途的沖擊破碎機械。
But soon she came swiftly back to the rock-bound lanes of Manhattan, and the typewriter began to rattle and jump like a strike- breaker's motor-car.
但很快，她回到了曼哈頓的石砌的巷道里，她的打字機開始跳動起來，發(fā)出像汽車出了故障一樣的咔嗒咔嗒聲。
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It has been proven by tests that the rock breaker is a new practical and economical secondary breaking equipment. The application prospect of the rock breaker will be bright.
研究和試驗表明，劈石器是一種新型、實用、低成本的礦巖二次破碎設(shè)備，具有廣闊的應(yīng)用前景。