查询词典 average velocity

An IFA300 thermal anemometry is used to measure the average-velocity distribution in the boundary layer.

在一定的雷诺数范围内，对风洞内壁光滑平板壁面，用此天平仪测量了流体的摩擦应力及摩擦系数。

Methods: 127 patients with cerebral arteriosclerotic headache aged 50 to 75 were randomly divided into therapeutic group and control group, the therapeutic efficacy and concentration of serum nitric oxide, calcitonin geng-related peptide, endothelin ,β-endorphin and average velocity of cerebral blood flow were measured.

127名脑动脉硬化性头痛患者随机分为治疗组和对照组，观察疗效，TCD及血浆一氧化氮，降钙素基因相关肽，内皮素和β-内啡肽水平的变化。

The determination of its average velocity over this distance is not difficult.

要确定它在这段距离上的平均速度并不困难。

Average velocity may be defined as the distance traveled divided by the time of travel.

平均速度可定义为通过的距离除以运动所需的时间。

Dynamic pressure averaging pipe was generally applied to blowing rate measurement in rectangular pipe of power plant, the average velocity of flow in the section was represented by the average dynamic pressure at the line through the geometric center of the cross section, and then the blowing rate was determined.

针对这一问题，本文设计了基于"对数契比雪夫法"的送风流量测量装置，将5支动压平均管置于同一截面，按"对数契比雪夫法"选点位置开孔，把这5支动压平均管的静压输出孔、总压输出孔分别连接到一起作为传感器组件的差压输出，实验表明这种方法使测量准确度明显提高。

The results showed that transom window types have much influence on airflow field inside the greenhouse, and that airflow distribution differs distinctively. The average velocity varies about 30%, while the maximum velocity does not vary much in three window types.

模拟结果表明：顶窗配置形式对温室内自然通风影响较大，室内流场差异明显，平均流速最大相差30%以上，但气流最大速度相差不大。

Diagnostic measurements of spectrual Doppler: Peak velocity, Average velocity, Pulsatility Index, Resistance Index.

光谱多普勒的诊断测量：峰值速度、平均速度、搏动指数、阻力指数

Dynamic pressure averaging pipe was generally applied to blowing rate measurement in rectangular pipe of power plant, the average velocity of flow in the section was represented by the average dynamic pressure at the line through the geometric center of the cross section, and then the blowing rate was determined.

针对这一问题，本文设计了基于&对数契比雪夫法&的送风流量测量装置，将5支动压平均管置于同一截面，按&对数契比雪夫法&选点位置开孔，把这5支动压平均管的静压输出孔、总压输出孔分别连接到一起作为传感器组件的差压输出，实验表明这种方法使测量准确度明显提高。

At three Reynolds numbers, a thermal anemometry IFA3oo is used to measure the average-velocity and time-sequence pulse velocity at different y+ points in the wtulent boundary layer on smooth as well as riblets plate surface respectively.

在三个雷诺数下，分别对二维流场的光滑壁面和沟槽壁面湍流边界层，用热线风速议作了试验。

By means of the present model certain phenomena related to the nonlinear acoustic properties of an orifice, such as the roll-up of the shed vortex sheet and the forming of the Vena-Contracta are simulated. For a sinusoidal sound pressure, the time- history of the average velocity through the orifice is computed, and the nonlinear distortion of the velocity is examined by means of the Fourier decomposition.

依据此模型，对圆孔声学非线性效应的若干特征现象进行了数值模拟，如脱落涡层的卷曲，Vena收缩段的动态形成；在孔板前声压按余弦规律变化的情况下，计算了孔中平均速度的时间历程，并借助于Fourier分解分析了孔中平均速度的畸变情况。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。