end helical surface 端面螺旋面
forming helical surface 螺旋面加工
milling helical surface 螺旋曲面加工
Hyperslender helical-surface 超细长螺旋曲面
helical surface of rotor 转子螺旋面
Objective To investigate the clinical applicable value of helical ct surface shaded displays (SSD) and volume reconstructions (VR) in patient with tibial plateau fracture.
目的探讨螺旋CT三维表面遮盖法重建(SSD)及容积重建(VR)在胫骨平台骨折诊断中的应用价值。
The helical surface equations of the spherical hob are set up in spherical coordinates. The formulas of the side clearance angle and numerical examples are given.
在球坐标系中，建立了球形滚刀的各个螺旋面方程，推导了侧后角公式，并给出了计算实例。
The paper deals with the generation conditions, variable ranges and the drawing of the projective view of the elongate involute helical surface.
本文主要讨论延长渐开线螺旋面的形成条件、变化范围以及它的投影图绘制方法。
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