锤破机锤头和电铲铲牙爆炸预硬后，其使用寿命可提高约50%。

The life of the hammers and the teeth increase about 50% after explosive hardening.

youdao

我要做的就是，选择一块够硬的石锤，这次我选这块是个头有板球大小的石英岩卵石。先挑个地方锤下去，接着我就开始从这地方开始凿了。

And what I do is, I select a hard stone hammer, in this case a quartzite pebble about the size of a cricket ball, and I elect to hit it in one place - and this is where I start to knap.

youdao

锤破锤式破碎机用于破碎各种中硬且磨蚀性弱的物料。

Hammer break Hammer Crusher for crushing all kinds of hard and abrasive weak materials.

youdao