Helicopters are limited in their forward speed by the spinning rotor blades that make hovering possible.
直升飞机那不停转动的旋翼叶片使其能够在空中悬停，但却限制了它向前的飞行速度。
Applying transfer matrix method to the complex rotor system, the critical speed and the vibrating model of a high - speed spinning winding chuck are analyzed.
将传递矩阵法应用于结构复杂的复合转子系统，对高速纺丝卷绕夹头的临界速度及其振型进行了理论推导与计算。
Domestic spinning rotor technology need to be exploited both in the sense of melt treatment process itself and comparing with overseas advanced degassing equipments was pointed out in the end.
最后指出无论从铝合金熔体处理本身的需要，还是与国外的先进除气设备相比，国内的旋转喷吹净化技术都有待开拓。
That is partly because of increasing vibration, but mainly because the spinning rotor blades provide both lift and propulsion.
直升机旋翼既要提供升力又要提供向前的推力是造成这一情况的主要原因，同时旋翼产生的震动也是一个让直升机飞不能高速飞行的部分原因。
Two pump rotor spinning rod through the implementation drive.
两个泵转子通过旋转的抽油杆实现驱动。
Polypropylene fiber spinning project has more than 10 independently-developed patents, and the invention of rotor-spun roving has supply a gap in China.
丙纶纺纱项目拥有自主研发的10多项专利，转杯纺高粗纱填补国内空白。
First, we probe into the crafts of rotor spinning and ring spinning and combining the characteristic of the fiber to spin.
结合天然彩棉纤维本身的特点，在纺纱过程中分别运用气流纺纱和传统的环锭纺技术进行了纺纱工艺的探索。
The relevant methods for the complex spinning have been introduced, including rotor spinning, hollow spindle wrap spinning and ring spinning.
介绍了在转杯纺、空心锭包缠纺、改造的环锭纺上的复合纺纱方法，并对各自的特点及存在问题进行了比较。
It shows that rotor spinning yarn with resistance torque element could improve the twisting effect in rotor spinning yarn, and further improve its strength.
测试结果表明，加装阻扭件的转杯纱可以适当改善转杯纺的加捻效果，进而适当提高了转杯纱的成纱强力。
Production practice proves that, in noil silk yarn production, rotor spinning process is superior to ring spinning process in terms of product quality, raw material consumption and processing costs.
生产实践证明：用转杯纺工艺生产的䌷丝纱，其产品质量、原料消耗、加工成本等均优于环锭纺工艺。
Rotor spinning is also called airflow spinning.
转杯纺纱又称气流纺纱。
Adaptation of raw material and spinning techniques has led to success in the rotor spinning of wool and its blends.
原料和纺纱技术的适应性使转杯纺能成功的将羊毛与其他原料混纺。
A physical model for spinning rotor degassing of aluminum alloys was built by calculating in light of physical dimensions representing flowing according to similar theory for model.
从表征流态的物理量出发，利用模型的相似理论，通过计算建立了铝合金旋转喷吹除气系统的物理模型。
To discuss reasonable processing of soybean protein rotor spinning yarn, main processing parameters of soybean protein fiber rotor spinning were designed, yarn quality was tested.
为了探讨大豆蛋白纤维转杯纺纱的合理工艺，对大豆蛋白纤维转杯纺的主要工艺参数进行了设计，并对成纱质量进行了测试。
The invention further relates to the electromagnetic bearing and driving system and the spinning mechanism of the rotor spinning machine.
本发明还涉及电磁轴承和驱动系统和转子纺纱机的纺纱机构。
The rotor spinning machine for model HJF605 is a kind of new type spinning machines at the present time, which is ripe and popularized.
HJF605转杯纺纱机是目前各种新型纺纱机械中较为成熟并以大量推广的一种。
The paper deals with the spinning technologies of rotor-spun fourth-grade rabbit hair blended yarns with polyester, acrylic and cotton, and briefly introduces their knitted and woven products.
本文重点介绍用转杯纺纱机开发四级兔毛、次兔毛与涤、晴、棉等纤维混纺的纺纱工艺，并简要介绍用这种混纺纱开发的针织和机织产品。
In spinning field, rotor spinning is currently technically matured, widely used and significant in economic efficiency spinning method.
在纺纱领域中，转杯纺纱是目前技术上最成熟、应用面最广，经济效益十分显著的一种纺纱方法。
Through analyzing the motion and dynamics of free yarn segment (F. Y. s) in rotor spinning, the effect of both the F. Y. s's shape and the spinning parameters on twist distribution of the f.
通过对自由纱段的运动及受力分析，对自由纱段形态以及纺纱工艺参数对自由纱段捻度分布的影响进行了研究。
Rotor spinning machine is a relatively new type of spinning machine.
转杯纺纱机是一种比较新型的纺纱机。
The article approaches to the task of making fancy yarn in rotor spinning from the two subjects: the slab yarn and the rotor spinning.
本文从竹节纱和转杯纺两个方面来探讨转杯纺纺竹节纱这一课题。
False twister is an important part in rotor spinning. It has complex form and mass production.
假捻盘是转杯纺纱机上的关键零件，它的形状复杂，生产批量大。
How to use the spinning rotor gauge correctly to prolong its service life and guarantee the precision of its reading are described.
重点介绍了如何正确使用磁悬浮转子规，确保磁悬浮转子规的使用寿命和读数精度。
The high-production and quality-insurance rotor spinning is introduced into waste silk spinning industry, replacing or complementing conventional noil silk production technology.
把成熟的转杯纺纱引进绢纺行业，以高产优质的转杯纺生产技术替代和补充传统的丝生产技术。
It has to improve the rotor spinning yarn quality from processes, equipment and operation to reduce the single yarn strength CV.
生产中应从工艺、设备、操作运转方面改善转杯纱内外在质量，降低单强CV值。
Introducing the technology of the blended linen yarn by the medium frequency rotor spinning machine.
介绍了用中频转杯纺纱机纺制亚麻混纺纱的工艺。
This paper analyses test data of rotor spinning package unwinding way, and makes clear that anti clockwise unwinding way worsens yarn evenness heavily.
转杯纺筒子纱不同退绕方式的试验数据分析表明：逆时针退绕严重恶化纱线条干。
Based on the better understanding of collecting and doubling mechanism of rotor spinning, the rotor slub shape is deeply analyzed by changing the feed roller speed three times in one slub circle.
从转杯纺的凝聚和并合机理出发，对三次喂给罗拉速度变化情况下转杯竹节纱竹节形态进行了深入分析。
In this paper are introduced the relationship of cotton assorting against rotor spinning quality as well as the properly cotton assorting.
介绍了转杯纺配棉与成纱质量的关系以及配棉特点。
A simple formula for calculating the yarn tension at peeling-off point and sufficient and necessary conditions for rotor spinning are offered.
最后，提供一个简便的剥离点纱张力计算式和转杯纺纱的充要条件。
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