二维超声测量肾脏的大小；多普勒流速曲线分析肾脏血流动力学的改变。
The sizes of kidneys were evaluated by two-dimensional ultrasound while the changes of hemodynamics were analyzed by Doppler velocity Tracing.
结果表明，下行程床层压降流速曲线的规律一致，流化时床层压降趋于稳定；
The results indicated that the pressure drop exhibited a plateau when the flow rate decreased.
目的分析通过肱动脉段流速曲线变化推断上肢动脉近端闭塞性病变的可行性。
Objective To study the possibility of predicting occlusive disease in proximal artery of upper extremities through analyzing changes of Doppler waveforms from brachial artery.
目的探讨体外模拟心脏运动对多普勒血流流速曲线速度时间积分(VTI)测定的影响。
Objective To investigate the influence of simulated heart motion on the Doppler spectrum velocity - time integral (VTI) of simulated blood flow measurements through an in vitro model.
结论上腔静脉流速曲线中心室收缩波和心房收缩反向波速度在评价容量反应性中有一定应用价值。
Conclusions the peak velocities of wave s and wave ar are of good value in assessing the fluid responsiveness.
结论超声可以对门静脉的血流方向和流速曲线作出准确评估，对门静脉的通畅性诊断价值优于CT。
Conclusion Ultrasound has a high value in evaluation of direction and wave pattern of portal vein flow, and has higher accuracy in detection of portal vein patency than ct.
结果由实测拟合数据得到的辨识结果能最好地反映呼吸生理特性，压力、容量和流速曲线最接近实际值。
Results The parameters got by clinical fitting data could reach the physiological characteristics well. The pressure, volume and flow curve was the most similar compared with clinical data.
超声分别以肱动脉段收缩期峰值流速值（PSV）、收缩期加速度值（AC）、肱动脉段流速曲线形态异常为标准预测上肢动脉近端病变。
The stenosis in proximal upper extremity was predicted by values of peak systolic velocity (PSV), systolic acceleration (AC), and the abnormal waveforms from brachial artery.
在这么短的时间元内，通过小曲线的流体，就是流速乘以时间元，还是小心一点来看吧。
And then the amount of matter that passes in that really, really small time is the flux times the amount of time. Let's be a tiny bit more careful.
结果得出了不同轴向载荷和不同质量比下的无量纲流速与无量纲频率的关系曲线。
ResultsIn case of various axial loads and mass ratios, various curves between dimensionless fluid flow velocity and dimensionless complex frequency are plotted.
目的通过对240例毛细支气管炎患儿的潮气流速容量曲线的测定，以探讨毛细支气管炎患儿气道阻力的变化规律。
Objective To explore the variational rule on trachea resistance of infants with bronchiolitis by detecting tidal breathing flow volume curves of 240 cases of infants with bronchiolitis.
绘制了自净曲线，计算了自净百分率和自净速率常数，并讨论了温度、河水流速及浊度对自净作用的影响。
Self-purification curves are presented, percentages and rate constants of the purification are calculated, and influence of temperature, flow rate, and turbidity on self-purification are discussed.
此外，研究了解吸液流速、浓度对解吸收率、解吸曲线的影响。
In addition, the effects of eluent's concentration, flow rate on the elution rate and the elution curves were studied.
对淬火油在不同流速下的冷却曲线和淬火烈度进行了测量，建立了硬化能力、淬火烈度与介质流速三者之间的关系。
By measuring the cooling curve and quench severity of quenching oil at various flow rates, the relationship among the hardening capacity, quench severity and flow rate was established.
对于每一气体压力，有与最佳增益曲线对应的流速范围。
It shows that there is an optimum flow velocity corresponding to the best gain distribution for a given operating pressure.
渗透率比值与注水孔隙体积倍数或渗流速度的关系曲线均呈“S”形；
The relative curves of the ratio of transient permeability to initial permeability with the injected fluid volumes or seepage velocity are like a character "S".
组合时采用了合理的测量点定位及校验方法，得到了不同轻相流量下的油水两相流速度分布曲线。
An effective position of LDA measurement points and position verification method have been utilized, and a series of velocity profiles with different oil flow rates achieved.
方法：经颅多普勒超声测定血流速度，同步记录血压，改变血压，绘制脑血流自动调节曲线，并进行分类和确定自动调节的上、下限。
METHODS: The blood velocities and blood pressure was recorded simultaneously and the curves of CBFA were analyzed and classified into classical and non-classical pattern.
试验研究宽裂隙高水力梯度下的非达西渗流运动规律，建立流速与水力梯度的非线性关系曲线。
Circle water flow system and high hydraulic gradient are applied. The experiment is carried out and the behavior of non-Darcy water flow with high velocity is studied.
应用经食管超声心动图测量肺静脉血流频谱曲线收缩早期逆向R波峰值流速（PVR）和收缩期S波峰值流速（PVS） ，分析PVR和PVS与其前心电图R R间期的关系。
The peak velocities of the early systolic reversal wave (PVR) and the systolic forward wave (PVS) were measured. The relationships between the preceding R-R intervals and PVR, PVS were analyzed.
对于不同的来流速度与不同的人工扰动频率与波数，一系列的实验研究提供了一组初始扰动的增长曲线。
The initial instability development has been investigated for different modes of artificial disturbances and oncoming wind speeds.
对于不同的来流速度与不同的人工扰动频率与波数，一系列的实验研究提供了一组初始扰动的增长曲线。
The initial instability development has been investigated for different modes of artificial disturbances and oncoming wind speeds.
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