脉动的

Amplitude and phase of pressure fluctuation at the inlet of draft tube as well as the inner flow in draft tube are analyzed in detail.

详细分析了尾水管进口截面的压力脉动的幅值和相位，并对尾水管内的流动做了分析。

By comparison, it is proposed that the active filter is one effective method of the decrease pressure pulsation.

通过对比，提出主动滤波是降低液压系统压力脉动的一种行之有效的方法。

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。

Therefore, generation of suction pulsation is suppressed without increasing the size of the compressor.

因此，在不增加压缩机尺寸的情况下，抑制了吸入脉动的产生。

And the boundary conditions of discharge pressure pulsation are considered.

建立了描述排气压力脉动的一维非定常气流方程组，提出了对计算精度及收敛性有很大影响的边界条件处理方法。

In order to resolve the problem of large switching loss at rated current, a constant current ripple control method is proposed along with varied frequency control.

同时，针对额定电流输出时开关损耗应力较大的问题，提出了电感电流恒脉动的变频控制方法。

The research indicates that using the non-steady RNS turbulence model can predict the frequency characteristics of the pressure pulsation in draft tube and the result close agreement with the field test.

研究结果表明，采用非定常雷诺应力湍流模式可以预测到尾水管内水压力脉动的频率特性，与现场试验的结果符合。

The mechanics of the pulsation as a heat-engine was proposed in 1917 by Arthur Stanley Eddington (who wrote at length on the dynamics of Cepheids), but it was not until 1953 that S.

1917年，亚瑟·斯坦利·爱丁顿首次提出了脉动的热能引擎驱动机制（见其所著的《造父变星动力学》书中），但直到1953年， S。

The causes of gas pulsations in dry twin screw air compressor are analyzed firstly in this thesis.

因此，对干式螺杆空气压缩机排气压力脉动的研究具有十分重要的理论与现实意义。

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。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。