但我们必须谨慎地进行，量纲分析。
But when you do a dimensional analysis, you better be careful.
量纲分析也许，可以换一种方式？
Is this dimensional analysis perhaps one that could have been done differently?
它是无量纲的，我们称之为拉力。
对于速度来说，这就表示速度的量纲。
这儿没有量纲，因为是长度除以长度。
This is a dimensionless number because it's length divided by length.
然后再作量纲分析，然后彻底玩完了。
And I start my dimensional analysis and I end up dead in the waters.
量纲在这儿指的是什么？
对信息进行组织；例如用于支持量纲分析。
Structure the information; for example, to enable dimensional analysis.
量纲分析就是这样。
介绍了量纲和单位两个不同概念。
Two different concepts of dimension and unit are introduced.
物理学中无量纲的量就是不需要单位的量。
Dimensionless quantities in physics are those that require no unit .
能让各位透彻地理解量纲分析，了解它的作用，与局限。
It will give you an insight in the power and also into the limitations of dimensional analysis.
利用下面的代换，便于使这个问题无量纲化。
It is convenient to nondimensionalize this problem with the following substitutions .
伯努利方程中的每一项的量纲都是单位面积上的力。
Each term of the Bernoulli equation has the dimension of force per unit area.
采用自然单位和无量纲变换都是科研上常用的方法。
Both natural unit and dimensionless transformation are usual methods used in scientific research.
因此，量纲分析，在热力学力很有用，这里就是一个例子。
So, dimensional analysis is extremely valuable in thermodynamics, and here is an example of it.
介绍了一种新的无量纲表格法来计算T形梁的正截面配筋。
This article introduces a new dimensionless tabulation method to calculate reinforcement of T-section beams.
爱因斯坦电梯；炮火射程；匀加速度和圆周运动的量纲分析。
Einstein's elevator; Artillery range; Uniform acceleration and circular motion using dimensional analysis.
通过无量纲分析船模螺旋桨噪声可以预报实船的螺旋桨噪声。
Ship propeller noise can be predicted by non-dimensional analysis of ship model propeller noise.
采用无量纲色散的概念研究了光子晶体光纤色散的计算方法。
Dispersion properties of photonic crystal fibers are investigated using the concept of normalized dispersion.
但是，该试样的重要力学参数即无量纲应力强度因子的标定尚有问题。
However, the calibration of the dimensionless stress intensity factor, which is an important mechanical parameter, is still in question.
空泡射流的产生及射流冲击力的大小，由泡能和无量纲参数共同决定。
The generation and the impact force of cavitation liquid-jet depend on the bubble energy and non-dimension parameters.
您可以通过安装可选的DB 2AlphaBlox向仪表板添加量纲和报告。
You can add dimensions and reports to your dashboards by installing the optional DB2 AlphaBlox.
长度量纲除以时间量纲,即为速度量纲,速度量纲为长度量纲除以时间量纲。
The dimensions of speed is the dimension of length divided by the dimension of time.
根据量纲分析原理，提出了关于有耗雷达目标表面阻抗的相似准则关系式。
Drawing on the experience of the principle of similitude in hydrodynamics, the formula of similitude-criterion concerning the surface impedance of target is proposed in this paper.
通过对实验数据的量纲分析和逐步回归分析，提出了确定摩擦系数的基本公式。
Therefore, fundamental equations of the friction coefficients are presented using dimensional analysis and progressive regression analyses of the data.
本文以纳米压痕法结合量纲分析及有限元方法来测量薄膜材料的应力-应变关系。
In this master thesis, the stress-strain relationships of thin films were measured by nanoindentation combined with dimensional analysis and finite element method.
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.
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.
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