The use of fibers as reinforcements increases the resistance of the plastic or metal to rupture stress and increases strength while providing a product light in weight.
利用纤维作为加强材料增加了塑料或金属的断裂应力，增加了强度，降低了产品的重量。
Because of the rupture and plastic deformation, the altitude of the tiny peak had been decreased, so the surface roughness of the target back side improved.
由于表面微尖峰的断裂和塑性变形使尖峰高度降低，因而表面质量得到提高。
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