介绍应用不同方法作斜切圆管表面展开图，比较不同方法的优缺点，可根据不同的工作条件选用不同的展开法。
Introduces in this paper different ways of making unfolded surface drawings of tilted-cutting pipes and compared their advantages and disadvantages.
介绍应用不同方法作斜切圆管表面展开图，比较不同方法的优缺点，可根据不同的工作条件选用不同的展开法。
Introduces in this paper different ways of making unfolded surface drawings of tilted-cutting pipes and compared their advantages and disadvantages.
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