螺旋

This paper introduces two methods of plasma arc powder automatic surfacing on a valve: helix surfacing and concentric circle surfacing.

介绍了2种阀门等离子弧粉末自动堆焊方式：螺旋堆焊和同心圆堆焊。

We make the effect width shorter and the effect length longer to decrease the leakage current by the seams in the poly-resistor. There are two kinds of seam in our thesis. One shape is spiral and the other is like a concentric circle.

我们将复晶矽电阻开缝隙，使元件电极看到的复晶矽电阻等效宽度变小或等效长度变大，藉此降低漏电流，本论文有同心圆缝隙及螺旋型缝隙两种结构。

Teaching tactics should be from concreteness to abstraction in a spiral way.

七、 教学策略，应以螺旋模式由具体到抽象。

Purpose: To evaluate the diagnosis of condyle fracture and treatment in the clinical application by three-dimensional rebuilding technology.

目的：评价螺旋CT三维重建技术在髁突骨折诊断及治疗中的应用。

A design method of non-perpendicular pitch cone of the honing wheel is presented in this article. By adjusting the distance from the contact point of pitch cones to the axis of honing wheel, the relative velocity between pitch cones is ensured to be in the direction of the tooth trace of the gear.

提出了用于珩磨螺旋锥齿轮的非正交珩磨轮节锥面的设计方法，通过调整节锥面切点到珩磨轮轴线的距离，保证了节锥面之间的相对速度恰好沿着齿长方向。

Because of the special structure of conical bearings and existence of spiral groove, conformal mapping and oblique coordinate transformation have been processed for calculated regions of the governing equations.

由于圆锥轴承的特殊结构以及螺旋角的存在，对轴承°的求解域进行了保角变换和料坐标变换。

A typical 3-RPS parallel platform manipulator mechanism is firstly studied by means of the above theory. The principal screws of this mechanism under three different configurations are identified by means of the conic section and the quadric degenerating theory, respectively.

以上述理论为武器首先分析典型的3-RPS并联平台机构，分别应用二次曲线分解理论和二次曲面分解理论，识别了该机构在三种位形下的主螺旋。

The coil is a conical helix.

线圈是一个圆锥形螺旋。

The work of this article is mainly focused on the following sections: a Detailedly expatiated temperature distributing of the solid transportation section in extrusion process of the conical twin-screw extruder, helix equation and the theory about extrusion output and solutions to them etc.

本论文的研究工作主要集中在以下几个方面： 1、较为详细地阐述了锥形双螺杆挤出机挤出过程中固体输送段的温度分布方程、螺旋线方程以及挤出产量的理论求解方法等。

Consequentially, there is demand to reduce temperature variation in the entire machine, not just the screw shaft, in order to prevent adverse effects on precision.

因而，有需求，减少温度变化对整个机器，而不是仅仅是螺旋轴，以防止对精度的不利影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。