tilted-cutting pipes 斜切圆管
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。
Block faulting activities inside basin develops, forming NE and NW fracture systems, thus cutting this basin into 47 tilted block faulting body and a series of overlying dustpan-like fault depression.
盆地内部断块活动发育，形成北北东向和北北西向两组断裂网络系统，切割改造成47个翘倾块断体和上覆的箕状断陷。
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