查询词典 instantaneous

Inside this article the author carefully discusses the research experiment on the concept of Instantaneous Velocity in senior middle school.

文章摘要：本文研究了中学物理中理解瞬时速度概念的实验。

In turbulent flow the instantaneous velocity at a point will vary about the mean value of ui .

但是在比临界流速更高的流速下波动稳定且振幅加大，引起高度的径向混合。

The continuous measurement method of the instantaneous velocity has not been developed and aPplied enough yetover the coufltry from author's knowledge.

目前速度的测试方法一般仅能确定运动物体在两点间的平均速度，瞬时速度的连续测试方法在国内尚未得到足够的开发和应用。

The continuous measurement method of the instantaneous velocity has not been developed and applied yet over the country from author s knowledge.

目前速度的测试方法一般仅能确定运动物体在两点间的平均速度，瞬时速度的连续测试方法在国内尚未得到开发和应用。

The instantaneous velocity field can be measured by using PIV technique. This is important to researching the unsteady flow within turbomachinery.

实践表明，该实验台能够满足本文的实验要求，而且为以后进一步的实验研究留有充分的余地。

Formulations of the lift and the thrust are derived based on the three-dimensional unsteady vortex lattice method, and the effect on instantaneous shape velocity is analyzed.

推导了新的基于空间非定常涡格法的扑翼飞行器升力和推力的计算公式，然后分析了瞬时形状速度对它们的影响。

Different disturbance frequencies have different effects on void wave instantaneous velocity probability distribution.

不同外加扰动频率对空隙率波瞬时波速概率分布的影响不同。

Particle Image Velocimetry is a technique of measuring instantaneous 2D and3D velocity fields growing rapidly in recent years.

粒子图像测速技术(Particle Image Velocimetry，PIV)是近年来发展很快的一种定量化的瞬时二维及三维流场速度场测量技术。

The influences of reservoir pressure and pulse duration on the instantaneous velocity are investigated.

过渡过程的基本特征为滤管内压力低于管外压力，滤管外壁附近存在回流现象。

By virtue of the instantaneous velocity of vehicles and precise time information supplied by GPS, a mathematic model can be established.

在利用GPS对车辆的定位与导航的基础上，进一步利用GPS提供的即时速度和准确的时间信息，通过数学建模，得到交通流量，平均车速，行程时间，车道占有率等一系列重要交通状况信息，以实现交通状况的实时检测，为城市交通管理系统智能化的实现提供必要保证。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。