因此，对衬板材质的要求是：既要求具有很高的表面硬度，以抵抗矿石的凿削与切削，又要求具有很高的强度与韧性，以抵抗冲击载荷。
Therefore, the liner materials should be required to have both very high surface to resist the drilling and cutting of ore and very high strength and toughness to resist impact Lord.
牙花弹子的顶端被加工成不同角度的凿型，并和钥匙上的角度切削相配合。
The tips of key pins are chiseled at various angles and mate with angled bitting cuts on the key.
冲击磨料磨损过程以冲击变形磨损为主，兼有切削磨损和凿削磨损。
The impact abrasive wear-off process contained the impact deformation wear as main, and also the cutting wear, as well as the chiseling wear.
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