Requiring continuous operation, stable pressure and no regular pressure fluctuation;
要求连续、压力稳定、不出现周期性压力波动;
Continuous grouting, avoid the piston pump large instantaneous pressure fluctuation.
可连续灌浆,避免了活塞泵过大的瞬时脉动压力。
The main purpose of the studies was to show the effect of coarse particles on pressure fluctuation.
主要目的是考察粗颗粒床层对压力脉动的影响。
Experiments show the new cushion mechanism can self-adapt to supply pressure fluctuation in a certain range.
试验结果表明该新型气缸的缓冲在一定供气压力波动范围内具有良好自适应能力。
Conclusion: Combination of si and ABPV can better reflect the relation ship between the blood pressure fluctuation and LVH.
结论:SI可以作为一种反映血压波动的新监测指数,其与ABPV联合观察可以更好地反映血压的波动与LVH的关系。
The status of on-line identification for gas-liquid two-phases flow regime using the different pressure fluctuation is reviewed.
介绍了根据压力波动过程实现汽(气)液两相流流型在线识别的最新研究成果;
The pressure fluctuation in the draft tube is obtained. The calculated pressure fluctuation frequency agrees with the test data.
数值模拟得到的尾水管中压力脉动的频率,与湖北中试所在隔河岩进行测试的结果基本一致。
Studies on flow regime identification of two phase flow according pressure fluctuation signal in recent years have been reviewed.
介绍了近年来通过压力(压差)波动过程实现气(汽)液两相流流型识别的最新研究成果。
According to the rheology theory, flow characteristics and pressure fluctuation of pumped concrete in conveying pipe are analyzed.
从流变学原理出发,分析泵送混凝土在输送管道内的流动特性和压力变化情况。
This scheme has good robustness in these aspects such as the pressure fluctuation of constant pressure network and load disturbance.
该方案对恒压网络压力波动、负载干扰具有较强的鲁棒性。
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。
Firstly, on the gas-solid fluidized bed experimental system platform, we get all the flow pattern of the pressure fluctuation signals.
首先,在气固流化床实验系统台上,获取各流型的压力波动信号。
The study of wall-pressure fluctuation is not only the important part in the theory of turbulence, but also the actual need in engineering.
对水流脉动壁压的研究,不仅有助于了解水流内部的紊动结构,而且具有重要的工程应用价值。 介绍了正交分解法在脉动壁压研究中的应用。
Many study results showed that pressure fluctuation in draft tubes is one of the most important factors that affects the stability of turbines.
许多研究成果表明,影响水轮机水力稳定性有多种因素,其中一个重要因素是尾水管内水流的压力脉动。
Screw pump features are: smooth flow, small pressure fluctuation, imbibition, low noise, high efficiency, long service life and reliable operation.
螺杆泵特点是:流量平稳,压力脉动小,能够自吸,噪声低,效率高,使用寿命长,工作可靠。
Cooling water pressure fluctuation may suddenly occur when a certain loading was reached during the high loading operation of main engine for a ship.
某轮主机进入高负荷运行,达到某一负荷时会突然出现冷却水压力波动。
The impulse turbine unit is normally used in high water-head power stations, whose diversion system is long and is likely to cause pressure fluctuation.
高水头电站一般采用冲击式水轮发电机组,引水系统长,容易产生水压波动。
While the load pressure fluctuation, the load torque fluctuation and the rotational speed fluctuation mainly affect the steady performance of the system.
负载压力波动、加载转矩和转速的波动,主要影响系统的稳态性能。
This study focused on analysis of pressure fluctuation on the body surface, prediction of exterior far-field noise and interior noise and the road tests.
本文的研究重点包括车身表面脉动压力的求解和分析、车外远场噪声和车内噪声的预估以及实车道路试验研究。
Objetive to analyze the clinical features of extra-adrenal pheochromocytoma, evaluate the factors associate with intraoperative blood pressure fluctuation.
目的提高对肾上腺外嗜铬细胞瘤的认识,探讨肾上腺外嗜铬细胞瘤患者术中血压波动的影响因素。
Also, it is found and analysed that there exists inlet pressure fluctuation of coiled capillary tubes when the degree of subcooling is changed from one to another.
从一个过冷度工况向另一个过冷度工况转变的过程中存在螺旋管毛细管入口处压力的波动,并对此现象作了简要分析。
The environmental effects of temperature variation and buoyancy variability due to barometric pressure fluctuation can be arithmetically tared out of the weighing values.
温度变化以及由于大气压变化引起的浮力变化的这些环境影响可以在称重数据中去除掉。
The comparison between the calculation results and experimental data indicates that the calculation in this paper can medict the pressure fluctuation in draft tube very well.
通过与模型试验结果进行比较可以看出,本计算能够比较准确地预测尾水管内的压力脉动。
With an example, the theoretical principle for designing accumulator absorbing pressure fluctuation is presented by analyzing the dynamic characteristics of hydraulic system.
针对蓄能器的应用,通过实例,从分析液压系统动态特性的角度,阐明设计蓄能器吸收压力脉动时应遵循的理论依据。
The nonlinear characteristics of pressure fluctuation for two-phase flow in vertical upward section of U-type tube were investigated by means of deterministic chaotic theory.
确定性混沌理论能够深刻揭示气液两相流压力波动的非线性特征。
Changing time zones, biorhythm disorder, vibration and air pressure fluctuation may disrupt the development of pregnancy in flight attendants, often resulting in miscarriage.
时区转换、生物钟混乱、振动和气压波动可能会扰乱空乘人员的怀孕进程,通常会导致流产。
The result makes it clear that wall-pressure fluctuation can be described with the method of proper orthogonal decomposition, and the low order approximation is very efficient.
计算结果表明脉动壁压可用正交分解进行描述,而且对其进行低阶近似颇为有效。
The mechanism of the water hydraulic piston pump's noise is analyzed, and it present that the pressure fluctuation is the main factor of the noise in fluid distribution process.
分析了水压柱塞泵的噪声产生机理,指出压力波动是配流噪声的主要因素。
The result of the test shows that, there is obvious pressure fluctuation in the inlet channels, and the amplitude of the fluctuation depends on the working condition of the engine.
试验和分析表明,两缸进气道中存在着明显的压力波动,波动程度取决于发动机工况。
The mixing chamber of headbox plays an important role in homogenizing pulp flow and stabilizing pressure fluctuation of pulp. The length of mixing chamber is an important parameter.
混合室在流浆箱中起着均匀浆流、稳定压力的重要作用,而混合室的长度是混合室设计中的重要参数。
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