摩托车曲轴箱体的壁厚与加强筋直接影响其结构强度。
The wall thickness and strengthen muscle of motorcycle crankcase box influences its structure intensity directly.
摩托车的曲轴箱盖是发动机的主要构件，在摩托车发动机运转时，会受到曲轴作用的激振力而发生振动向外辐射噪声。
Motorcycle's crankcase cover plate is its engine's major component, which would vibrate to radiate noise under the force of the crankcase when the motorcycle'sengine operates.
通过对摩托车CG125曲轴箱左体工艺及装备进行研究，论文提出用反镗技术解决难点；
Then by studying CG125 left crankcase of motorbicycle technics and equipment. The technology nodus adopt reverse boring cutter technics.
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