Two-Dimensional Milky Way Spiral Arm Contrast

This solution can more accurately investigate the outer spiral arm of dish-like galaxies.

此解可用来更精确地研究盘星系的外围旋臂，把过去得到的星系旋臂图样的精确程度提高一步。

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The less the ratio η is, the more tightly the spiral arm winds up.

系数η越小，则旋臂越紧卷。

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On the basis of theses models, the paper makes a lot of calculations, simulations and analysis on the stationary state and the transition state characteristic of the micro robot, and also optimizes the spiral angle of the micro robot.

在此基础上，对微机器人的稳态游动特性和瞬态游动特性进行了仿真计算和研究分析，并对微机器人的螺旋升角进行了优化设计。

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Controlling the position of a roller properly, the relative position between the cylinder and roller will be change so that a additional spiral angle will be produced. Therefore the relative axial motion of the cylinder can be controlled effectively.

调节从动轮的位置，可以改变筒体和滚轮的相对位置，产生附加螺旋角，能有效控制简体的轴向运动。

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The velocity moment increases slightly with the radius in radial sections, while the distribution is not constant in spiral angle, but its averaged value tends to be a constant in the volute;

速度矩沿径向的分布随半径增大略有提高，沿蜗壳幅角方向的分布不等于常数，但其平均值基本不变；

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The relative spiral angle and pressure angle errors were defined and introduced into the evaluation of the teeth mating precision, which had been carried out by the measurements of teeth form and pitch errors.

通过引入相对螺旋角误差与相对压力角误差的概念，对齿形与齿距误差进行了测量，从而评价了轮齿研齿前后的实际啮合精度。

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Including the calculation of the specific heat transfer area, spiral angle, and computing the distance between baffles, helical baffles the geometry of the design, strength calculation and so on all parts.

具体包括换热面积的计算、螺旋倾角及折流板间距的计算、螺旋折流板的几何形状设计、各部件强度计算等等。

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And 34 × 7 multilayer strand non rotation ropes have such structure and technical characteristics as strand having the same structure, strand ing layer ropes according to equal spiral angle.

17×7类、34×7类多层股不旋转钢丝绳具有组绳股结构相同、层绳按照等捻角分层捻制的结构特点和工艺特点。

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Performance of compressor is very wide difference when spiral angle and rotor lead of compressor are different even if rotor profile is same and rotor diameter is equal.

即使是相同类型的转子型线和直径相等的阴、阳转子，当阴、阳转子的螺旋角和导程长度不等时，压缩机的性能也有很大差别。

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This type of two shell sides solve the problems caused by spiral angle, poor transforming heat property and increasing pressure drop in large diameter heat exchanger.

这种双壳程结构解决了在大直径换热器上由于采用单壳程螺旋折流结构所形成的折流倾角小、传热性能下降及压力降增大的弊病，具有良好的推广应用前景。

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The relationship of these major parameters such as groove numbers and spiral angle to seal pressure is revealed and the optimized result is obtained.

分析了影响密封性能的主要设计参数如螺旋角α，槽数n等对密封压力的影响规律，得出了优化结果。

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The three parallel axis gear-bearing-rotor system dynamic characteristics change little while skew gear spiral angle varies between 8 degree and 20 degree.

斜齿轮螺旋角在8度到20度间变化时，三平行轴齿轮轴承转子系统的振动特性基本没有变化。

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A method to improve the dynamic characteristics of gear system is proposed through the selection of spiral angle of helical gear according to gear system dynamics theory.

以齿轮系统动力学理论为基础，提出了通过斜齿轮螺旋角的择优选取改善系统动态特性的方法。

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The influence of the bearing structure, eccentricity, spiral angle, rotating speed and critical shear stress on slip degree is studied.

研究了轴承的结构、偏心率、螺旋角、转速和极限剪应力对滑移程度的影响。

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Distribution of Microfibril Spiral Angle of Cotton Fibre and Relative Orientational Index of Cellulose Crystallites in Cotton Plant

棉纤维的微原纤螺旋角和纤维素微晶相对取向指数在植株中的分布

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The study shows that the stress in tooth middle is larger than that in tooth root with big spiral angle and light load.

研究表明，大螺旋角或小载荷时，齿腰应力大于齿根应力。

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Simple Method for Measuring Spiral Angle of Helical Involute Gear Together with Computer Analysing Method of the Least Squares Regression

渐开线斜齿圆柱齿轮螺旋角的简易测量及计算机回归处理

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Larger diameter of inner tube and smaller spiral angle are favorable to the intensification of moment;

较大的内管直径、较小的螺旋角有利于力矩强化；

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Impact on Pulling Board and Clamping Parts by Winding Groups Spiral Angle in Large-sized Transformer

大型变压器中绕组螺旋角度对拉板和夹件的影响

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Several mapping methods of spiral angle of skew spur gear on the spot are introduced.

介绍了现场测量斜齿圆柱齿轮螺旋角β的几种方法。

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