查询词典 helical

A way to construct a descriptive geometric model of a finger cutter for processing a helical gear is presented.

论述了加工渐开线斜齿圆柱齿轮指形铣刀画法几何模型的建立方法；推导出指形铣刀轴剖面廓形曲线上点的坐标方程；进行通用Autolisp程序设计，并举例绘制轴剖面廓形。

Some useful forming rule and die structure to reduce the forging load and improve material's filling of helical gear forging are obtained.

初步探索出了一些有利于斜齿轮充填和降低成形载荷的模具结构形式和成形规律。

Objective To investigate the clinical value of helical CT threedimensional reconstruction in diagnosis of thoraciclumbar burst fractures.

摘 要］目的：探讨螺旋CT三维重建(ThreeDimensional Reconstruction ，3D)技术在胸腰椎爆裂骨折中的诊断及临床应用价值。

The temperature distribution of helical gears is analyzed under different oil temperature with the basic principle of heat transfer, tribology, Blok theory and gear mesh.

运用传热学、摩擦学、Blok理论及斜齿轮啮合基本原理，分析了不同油温下斜轮齿的温度场分布状况。

Ensor analysis ; helical tube ; heat transfer ; perturbation method

张量分析；螺旋管壁；热传导；正则摄动

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。