由于飞机轮胎磨损快，要求经常更换。
The wear-out of plane tyres is serious and should be replaced periodically.
克服了其它锤式破碎机锤头磨损快、锤销易折断的缺点，具有入料粒度大；
Overcome the other hammer crusher hammer wear quickly, easily broken hammer pin defects into the material with a particle size large;
进行碳纤维复合材料切削加工时，易产生各种加工缺陷，刀具磨损快，尺寸控制困难。
It is easy to produce a lot of machining defects for carbon fibre composite material in cutting processing. Tools wear quickly and it is hard to control size.
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