多数医者认为本病迁延难愈，且易复发，颇影响患者的生活质量。
Most doctors believe that this disease is difficult to delay to heal, and apt to recur, quite influence the patient's life quality.
本研究从工况材质两方面分析了搅拌机衬板使用寿命颇低的原因，针对工况对衬板材质性能的要求，在合金元素和热处理工艺两方面做出改进。
After blender liner's low life was analyzed, a method is brought forward involved alloy ingredient and heat treatment process, according to material's performance and working condition.
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