This is the first chapter in the design of a detailed design, chap mainly on drawing aircraft axle and bearings calculated with accuracy, gear design data.
这一点在本设计的第一章进行了详细的设计，第二章主要是对牵伸机的轴与轴承的计算与校核，齿轮的设计计算。
Each chapter by the case of introduction, chap after match with skills training to enhance the ability.
每章都由案例引入，章后配以技能训练进行能力提升。
Each chapter by the case of introduction, chap after match with skills training to enhance the ability.
每章都由案例引入，章后配以技能训练进行能力提升。
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