查询词典 pulsation

Warning: The back-pressure valve prior to any maintenance, equipment operation should be stopped, release the pressure, close the back pressure valve valve associated with the system, while recognizing that there is no pressure pulsation damper.

警告：对背压阀进行任何维护以前，应停止运转设备，释放压力，关闭背压阀与系统相联的阀门，同时确认脉动阻尼器内没有压力。

On the back-pressure DIN Y-Strainers valve prior to any maintenance, equipment operation should be stopped, release the pressure, close the back pressure valve valve associated with the system, while recognizing that there is no pressure pulsation damper.

对背压阀进行任何维护以前，应停止运转设备，释放压力，关闭背压阀与系统相联的阀门，同时确认脉动阻尼器内没有压力。

Warning: The back-pressure valve prior to any maintenance, should stop functioning equipment, the release of pressure, Plug Valves close the back-pressure valve valves associated with the system, while recognizing that there is no pressure pulsation damper.

警告：对背压阀进行任何维护以前，应停止运转设备，释放压力，关闭背压阀与系统相联的阀门，同时确认脉动阻尼器内没有压力。

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。

It is not enough to resolve all of the problems related to the hydraulic stability only to analyze the stable field in passing components. Finally, the paper numerically simulated the transient field in prototype's draft tube under different operating conditions by means of Reynolds stress turbulence model and analyzed the law of motion of vortex rope as well as the performance of low-frequency pressure pulsation and compared with field test results.

仅仅对机组的过流部件进行稳定场的CFD数值分析还不足以解决所有与水轮机水力稳定性有关的问题，因此在本论文的最后，采用雷诺应力湍流模型对真机尾水管在不同运行工况下进行了非稳定场的CFD数值解析，分析涡带的运动规律及其产生的低频压力脉动特性，并与真机的试验结果进行了比较，结果比较吻合。

Using 2MHz pulseultrasonic Doppler probe, the index of hemodynamics such as blood flow rate、audio frequency、vascular pulsation of bilateral vertebral and basilar arteries were detected in order to analyze the diagnosis of cervical spondylosis involoving vertebral artery by Transcranial Color Doppler through the occipital foramen. Results: of all 108 carses, 80 cases were positive(positive rate 74.7%). In CSA group,cases of low flow rate were 45.6%,cases of high flow rate were 28.7%,and cases of no...

为分析经颅多普勒检测椎动脉型颈椎病的诊断价值，采用配对研究方法，用 2MHz脉冲多普勒探头经枕骨大孔窗口，检测左、右椎动脉及基底动脉的血流速度、流向、音频、血管博动指数等血流动力学指标，结果显示 10 8例患者有 80例异常，异常率 74 7%，并发现CSA组低流速者占 45 4 %，高流速者占 2 8 7%，正常流速者占 2 5 9%，与正常对照组间有显著差异(P 0 1)，总体而言，低流速型是CSA的主要特征之一。

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 accepted explanation for the pulsation of Cepheids is called the Eddington valve, or κ-mechanism, where the Greek letter κ denotes gas opacity.

造父变星脉动机制公认的解释是：爱丁顿阀，或称为κ-机制，希腊字母κ表示气体的不透明度。

Pulsation dampeners are directly situated above the pump discharge valve.

脉冲缓冲器直接安装在泵出口阀上。

Pressure gauges shall be safety pattern and shall be liquid filled or furnished with pulsation dampeners for pulsating services including pump discharge and compressor applications.

现场压力表应是安全型并应是充液或配备用于振动工况包括泵出口和压缩机应用的振动阻尼器。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。