无脉动的

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我们的主要产品有：牙科综合治疗机；国内外各大品牌光固化机；无油空气压缩机；空压机自动排水系统；清洗注油机；手机润滑剂；高低速速涡轮机；高低速手机用各类车针，灭菌器脉动真空系列；WOODPECKER超声波洁牙机；南韩打磨机；银汞调和机；手机；车针；手机轴承手机管；医师座椅；牙科医疗小型器械

This paper discusses the principle of the torque ripple of BLDCM with focuses on the theoretical analysis of the relationships between torque ripple and parameters of windings,motor speed and bus voltage,as well as 3-phase reverse electrodynamic potential during phase converting.

对永磁无刷直流电机的换相转矩脉动的产生机制进行了分析，主要从理论上探讨了换相引起的转矩脉动与电机绕组的参数、换相期间的三相反电动势、电机的运行速度及母线直流电压等之间的关系。

In order to improve the mechanical performance and transmission efficiency of the traditional pulsed mechanical continuously-variable transmission,a novel pulsed CVT is proposed according to the linear characteristic of hypocycloid at specific parameters and by combining the planet gear transmission mechanism with the crank slide block mechanism.

针对脉动式无级变速器动力性能差、效率低下等缺点，利用内摆线在特定条件下为直线的特性，将行星齿轮传动机构与曲柄滑块机构相结合，提出了一种新型脉动式无级变速装置。

The objective of this dissertation is to study the control technology to minimize the torque pulsation of BLDCM.

本文的主要目的就是研究无刷直流电动机转矩脉动的抑制方法。

In this paper, the research of the non-ripple torque control system of brushless motor is an emphasis.

本文的主要研究对象是永磁无刷电机无脉动转距控制系统。

Several studies indicate a worse outcome in patients who received fasciotomy compared with those who did not.7, 11 It is felt to be indicated only in a potentially viable extremity that is pulseless due to elevated intracompartmental pressure.18 Fasciotomy was felt to be useful in preventing cases of Volkman's ischemic contracture after the Tangshan earthquake.3 In Israel, fasciotomy was reserved as a treatment of last resort in cases refractory to the use of intravenous mannitol.7

几项研究表明，采用筋膜切开术的患者后果比未手术者更严重。这说明仅在可能的极端情况下筋膜间区压力升高才会导致无脉动现象。在唐山地震后，筋膜切开术对预防前臂缺血性肌挛缩有效。在以色列，筋膜切开术被做为难以采用静脉输注甘露醇病人最后的治疗方法。

Thus, a decoupling chamber pressure control system was designed and installed at the end of the tailpipe of a valveless self-excited pulse combustor. The relative pressure in the decoupling chamber was controlled from about -10 kPa to 10kPa through a blower, and the influence of pressure variation on the heat transfer in tailpipe was investigated.

在一台无阀自激脉动燃烧器尾部建立了去耦室压力控制系统，通过调节引风机前的阀门开度来改变去耦室内部压力即尾管出口压力大小（调节范围-10～10 kPa），实验研究了去耦室压力变化对脉动燃烧器尾管传热的影响。

Then,the left external carotid artery of 40 adult New Zealand White rabbits were ligated,which reduced the pulsatile shear stress of left common carotid significantly (for example, mean=21.16 ± 7.17 vs 3.13±2.28 dynes/cm2, p=2.176E-21)and did not change the pulsatile shear stress of right common carotid significantly.

结果左颈外动脉结扎后即刻兔的左颈总动脉形成脉动低切应力以τ_(mean为例，从21.16±7.17dynes/cm~2降至3.13±2.28dynes/cm~2，p=2.176E-21，并一直持续至结扎12周后；而右颈总动脉脉动切应力始终无显著变化。

This, in turn, causes second harmonic pulsations in the torque and reactive power.

这反过来又造成二次谐波脉动的转矩和无功。

Imports of liquid from entering the rotating rotor tube cavity, the role of the centrifugal force and pressure into the receiver tube, through the receiving tube speed can be transformed into a smooth, non-pulsating pressure from the export pipe emissions.

液体从进口管进入旋转的转子腔内，在离心力和压力作用下进入接收管，通过接收管将速度能转化为平稳、无脉动的压力能从出口管排出。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。