螺旋

The shape of the tooth is an involute helicoid.

牙的形状是断开线螺旋面。

The tolerance of dynamic preloaded drag torque is an important parameter in the quality verification of helicoid.

动态预紧转矩是检验丝杠螺旋面质量的重要参数，为了满足ISO3408-3：1992和GB/T17587。

The equations for the helicoid and cross section of a ballscrew are worked out and a numerical integral method for the computation of the moment of inertia of the cross section is proposed.

建立了滚珠丝杠的螺旋面方程及横截面方程，提出一种精确计算滚珠丝杠横截面惯性矩的数值积分法，计算结果表明，传统的简化方法将造成20％以上的计算误差。

As the application of the methods given, involute helicoid, which is widely applied in engineering, is developed into plane. And the problem in plate metalwork, which is t he development of square-circle tie-in, is also solved by the method.

其一是钣金工中方-圆类接头的展开问题，该问题的解决是锥面展开方法的成功应用；其二是螺旋输送器的核心部件——铰龙的展开问题，它是切线曲面展开方法应用的典型实例。

The basic worm helicoid surface of sphericity hob was deduced, and the coordinate systems for cutting face gears were established.

推导了球形滚刀基本蜗杆螺旋面方程，建立了滚切面齿轮的坐标系统。

The shape of thooth is an involute helicoid.

thooth形状是断开线螺旋面。

Helicoid rotates in the pipe- shaped trough or U-shaped trough with internal anti-abrasion protective lining and produces pushing force to push material to move forward, so that the goal of conveyance can be reached.

螺旋休在有内部防磨损保护衬套的管型槽或u型槽十旋转而产生推动作用，使物料向前运动，从而达到输送门的。

Helicon plasma is a kind of high density,low temperature plasma in low pressure.

螺旋波等离子体是一种高密度的低温低气压等离子体。

In this paper,a helicon plasma source has been introduced the first time in China;the plasma system is in glass.

本文介绍了一种玻璃系统的螺旋波等离子体的发生装置，这在国内尚属首次。

The hardware included helicon wave antenna and focusing system.

其中硬件系统主要包括：螺旋波天线和辉光聚焦系统的设计；PCL-818HG数据采集卡输出的+5V稳定信号，经过分压电阻和三极管后，作为数控器的外部启动/停止信号，控制步进电机带动光谱仪转动；另外，为了减小光电倍增管的噪声，单独为其提供了稳定的高压直流电源。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了