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.

1、

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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2、

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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3、

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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4、

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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5、

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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6、

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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7、

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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8、

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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9、

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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10、

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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11、

Machining taper milling cutter with uniform spiral angle by non-circular gear transmission method

非圆齿轮传动法加工等螺旋角锥铣刀

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12、

CNC grinding model and technology of an equal spiral angle cone ball end miller

圆锥球头立铣刀的CNC磨削模型及工艺

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13、

Calculation of Pressure Angle and Spiral Angle on Spiral Bevel Gear Tooth Surface

螺旋伞齿轮齿面上指定点处压力角及螺旋角的计算

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14、

Effect of spiral angle and rotor lead of compressor on performance is researched.

分析了转子螺旋角和导程对螺杆压缩机性能的影响，研究了环境温度对压缩机性能的影响。

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15、

Spiral angle and tooth width of gear in oil pump

油泵齿轮的螺旋角和齿宽

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16、

Eccentricity and spiral angle have different effects on pressure.

偏心率和螺旋角对油膜压力有不同程度的影响。

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17、

Equal spiral angle taper cylindrical milling cutter

等螺旋角锥度柱铣刀

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18、

The Generating Theory of the Flutes of Special Revolving Tools with Constant Spiral Angle Edge

磨削具有等螺旋角刀刃的特种回转面刀具的原理

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19、

On the outside brim of each spiracular slits and between inner and medical spiracular slits, there were 4 groups of spiracular muscles ( spiracular gland termed in the past).

在每个气门裂的外侧缘上及内、中气门裂之间，共有4组气门肌（原称气门腺）。

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20、

Spira says he has also found gene expression differences in a study using healthy former smokers.

Spira称，一项对健康戒烟者进行的研究也发现了基因表达的差异。

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