掌握零件测绘基本方法，能正确绘制中等复杂程度零件图。
Master principle methods of part mapping. Be able to draw detail drawings with moderate complexities.
零件的测绘方法。
部件的测绘；由装配图拆画零件图。
针对这些不利因素，对生产装置上常遇到的比较难测绘的几种零件，如弹簧、叶轮、齿轮，用多种计算的方法对测绘数据进行处理，以得到完整的零件工作图。
Aiming these factors, we use different calculating methods to handle the surveyed data. Such as that of spring, turbo wheel and gear in order to get the complete work drawing of the spares.
针对这些不利因素，对生产装置上常遇到的比较难测绘的几种零件，如弹簧、叶轮、齿轮，用多种计算的方法对测绘数据进行处理，以得到完整的零件工作图。
Aiming these factors, we use different calculating methods to handle the surveyed data. Such as that of spring, turbo wheel and gear in order to get the complete work drawing of the spares.
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