The small chin deformity was a commen developmental deformity of the jaw.
目的：提高双侧下颌角肥大伴有小颏畸形的手术治疗效果。
The metal fluidity in deformed rigion was stutied by comparing commen rolling with cross rolling and experied with two high cold rolling mill.
对常规轧制和交叉轧制时变形区金属流动特性进行了理论分析 ，并在二辊冷轧机上进行了试验。
The metal fluidity in deformed rigion was stutied by comparing commen rolling with cross rolling and experied with two high cold rolling mill.
对常规轧制和交叉轧制时变形区金属流动特性进行了理论分析 ，并在二辊冷轧机上进行了试验。
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