无因次数的物体意义一般不能清楚地用公式表达。
The physical meaning of dimensionless numbers cannot usually be formulated clearly.
如果用公式表达的话就会用到向量，如果用向量的话，我们就需要一些对我们显而易见的方法,来解决它。
And, you'll see that if we reformulate Kepler's Law in terms of vectors, and if we work a bit with these vectors, we are going to end up with something that's actually completely obvious to us now.
有些模式涉及到对称性，因而可以用数学公式加以表达。
Some of these patterns relate to symmetries, which can be expressed mathematically.
用假设弱透镜焦距表达式是一个幂级数中的第一项的方法，可以导出相当准确且便于实用的电磁电子透镜物镜焦距公式。
By assuming the weak lens focal length expression to be the first term in a power series a simple and accurate formula can be derived for the objective focal length of a magnetic electron lens.
用这个很长的数来表达经验公式显得冗长而不实用。
So long number to expressing empirical formula that appears not only lengthy but also less practicality.
以此规律为基础，拟合成了用数学方程表达的粘接应力分布形态公式。
Based on this law, a distributing shape formula of the adhesive stress expressed by using a mathematical equation is also obtained.
目标产量与基础产量的相关性较高，用经验公式能很好的表达；
There is a high correlation between objective yield and normal yield, and the relation can be nicely expressed by empirical equation.
这些现象规律都可以用古典力学的公式表达出来，一切似乎都合乎情理。
These phenomenas can be expressed in classical mechanics. Everything seemed to be reasonable.
将对数正态扩散过程表达的随机过程转化为风险中性，并在此条件下用鞅定价方法推导出与股票相关联的欧式汇率买入期权的价格公式。
By applying the martingale pricing method in a world in which the logarithmic normal diffuse processes are expressed risk-neutral, we get European exchange rate call option related with the stock.
导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。
The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.
导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。
The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.
应用推荐