查询词典 derivation

The whole progress of mathematics derivation about it is proposed by analysing the modulation principle in the new spectropolarimeter. The simulation experiment on the demodulation progress is also achieved.

结合强度调制偏振光谱仪实现偏振光谱信息调制的机理，给出了采用傅里叶变换法实现偏振光谱信息解调过程的完整数学推导，并对解调过程进行了计算机仿真模拟。

Up to 1749 participants from the Baltimore Longitudinal Study of Aging completed tests of verbal and nonverbal memory, attention, perceptuo-motor speed, confrontation naming, executive functions, and cognitive screening measures, as well as concurrent sphygmomanometric assessment of blood pressure (for derivation of pulse pressure) on 1 to 8 occasions over 14 years.

将Baltimore Longitudinal Study of Aging的1749例参与者纳入研究对象，分析语言和非语言性记忆、注意力、轮动速度、对诊法、执行功能及认知功能测定、同时进行复式血压估测血压。

By introducing the time derivation of the intensity difference between the receiver and the transmittal, the messages can be decoded successfully.

通过引入接收器激光的强度输出与接收器激光的强度输入的差值对时间的微分，可以成功地实现对信号的解码。

In chapter 2, we focus on derivation of the tortuosity models for flow of Newtonian incompressible fluid in two- and three-dimensional porous media with spherical, cubic and plate-like particles by applying the geometrical method. We first present the ideal geometrical models of porous media to show the ideal and representative streamlines based on the assumption that some particles in porous media are unrestrictedly overlapped and hence of different configurations, then the average tortuosity is derived by geometrically and weightedly averaging these representative flow paths.

第二部分采用几何分析法研究了二维和三维情况下的球形颗粒、立方体颗粒和板状颗粒多孔介质中流体流线的迂曲度，首先给出多孔介质的理想几何模型，通过分别考虑固体颗粒重叠时、不重叠时以及粒子的不同排列等情形时的流体流线，然后对这些理想代表性流线的迂曲度取几何平均和加权平均，最后推导出流体流过多孔介质的迂曲度解析表达式。

Golikov as the general and single-valued criterion for evaluating the acoustics of rooms and auditori- ums have been critically examined,with detailed discussionsconcerning:(1) the empirical foundation of the articulation-Q"functional relationship A= f,(2)the derivation of the"particular criterion"or the optimum re- verberation condition form Q",(3)the meaning of a time integration of the "noise-interference factoras viewed from the theorey of auditory perce- ption...

主要内容有：(1)以在不同的条件(如语言、测试人员、宣读方式以及声学场所等)之下的清晰度测验结果来验证 A=f函数的适用性，(2)判断了从Q&来推求以体积为参数的最佳混响时间的可能性，(3)，从听觉理论来讨论&混响干扰因子&对时间积分的意义，(4)讨论了原作者对&噪声因子&的看法，指出了&噪声因子&定义中的一些值得存疑之处。

The upshot is that if, in Jackson's derivation, we replace, which we have argued is not a microphysical claim, with the weaker claim that H2O is a waterish stuff around here, then there will be no way to derive the conclusion from the premisses.

这个结果是，从Jackson来的，我们用更弱的主张&H2O是这里的某些『a』水性材料&取代（——我们认为不是微观物理学主张），那么就没有办法从前设得到结论了。

First the three-dimensional Hailmuhz equation of magnetotelluric field is split into two 2D equations which could be changed into 1D equation by Fourier transformation method. The two zootomic coefficients of the equation are found out by the derivation of vertical component of electromagnetic field being sufficient the equation and the boundary condition. The resolution of 1D equation can be confirmed.

首先将大地电磁场满足的三维亥姆霍兹方程降维分裂成两个二维响应方程，然后对每一个二维方程进行傅里叶变换，使二维方程变为一维方程，通过大地电磁场垂向方向的导数在地面上所满足的边界条件，确定外推方程中的两个待定系数，从而得到一维外推方程的解。

A line of descent; derivation.

一种脂代谢失调的遗传病，多出现在欧洲犹太血统中

The power of its electronic transgression is 2.7ev, 40% less than that of pure tungsten electrode. With a low arc derivation voltage. It's easy to cause arc of high stability. Its current capacity is elevated 30% while its rate of burn spoilage drops low, making it more durable.

电子逸出功约2.7ev，比纯钨低40%，引弧电压低，易起弧，电弧稳定，载流能力提高30%，烧损率低，寿命延长。

The process of putting affixes to existing forms to create new words is called derivation.

的过程中把词缀现有形式，创造新词被称为派生。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。