查询词典 differential calculus

Planetary gear differential is the most important part in horizontal screw decanter centrifuge which can decides the operational capability of centrifuge.

差速器是卧式螺旋离心机中最重要的传动部件，其性能和质量往往决定着整个机器的工作能力，而振动问题是离心机械常见的问题，对其进行计算是非常必要的，本文主要是就这两方面进行研究分析。

The cold rotary forging forming process of car differential bevel gear was simulated by FEM,and was researched through experiment.

对轿车差速器锥齿轮的冷摆辗成形过程进行三维刚塑性有限元模拟和实验研究，利用三维有限元软件-DEFORM模拟其成形过程中的金属流动充填规律和变形力学特征，揭示了其精密成形过程的变形机理。

But the classical differential centrifugation technique needs special ultra-speed centrifuger and deuterium oxide, which limits the research and application of them.

本研究利用外来体的物理特性，用基于孔径分离的生物膜离心过滤法制备得到了外来体，有效的降低了外来体研究及应用的技术门槛。

First,the 3-d dynamic equations in cylindrical coordinate for transversely isotropic saturated soil were transformed into a group of governing differential equations with 1-order by the technique of Fourier expanding with respect to azimuth,and the state equation was established by Hankel integral transform method,furthermore the transfer matrixes within layered media were deriv...

首先，通过方位角的Fourier变换，将圆柱坐标系下横观各向同性饱和土的三维动力方程转化为一阶常微分方程组，基于径向Hankel变换，建立问题的状态方程，求解状态方程后得到传递矩阵；其次，利用传递矩阵，结合层状饱和地基的边界条件、排水条件及层间接触和连续条件，给出了任意简谐激振力作用下层状横观各向同性饱和地基动力响应的通解；然后，按混合边值问题建立层状饱和地基上弹性圆板非轴对称振动的对偶积分方程，并将对偶积分方程化为易于数值计算的第二类Fredholm积分方程，并给出了算例。

Compared with second-harmonic restraining method, this algorithm can avoid the problem of delaying action of differential relays.

该识别法与二次谐波制动原理相比，不会出现某些内部故障情况下由于二次谐波大可能造成差动保护延时动作的问题。

The possibility of decompression sickness must always be included in a differential diagnosis when a medical complaint is raised following a dive.

在差别诊断中，当疾病和不适感是在潜水后产生的，则必须考虑到患减压病的可能性。

The type of the limit state function is set up according to the Mohr-Coulomb yield criterion which can consider the direction of the slip surface; and the derivatives of the stress to the basic stochastic variables of the slope are computed by using partial differential method based on the incremental tangent stiffness method and the accelerating convergence method of Aitken.

其中功能函数的形式是以考虑滑面方向的Mohr-Coulomb屈服准则来建立的；导数的求解采用的是基于增量切线刚度法及Aitken加速算法的偏微分法；边坡整体可靠指标取的是所有可能滑面的可靠指标的最小值。

Objective To analyze the histogenesis, classification, incidence, clinical feature, the key point of differential diagnosis and histopathologic characteristics of ciliary body neoplasms to provide the basis for clinical diagnosis and treatment.

目的 分析睫状体部占位性病变的组织来源和类型、临床表现、鉴别诊断特点以及组织病理学特征，为临床提供诊断和治疗依据。

In addition, we present the differential conductance as a function of the chemical potential of the input terminal at various temperatures.

我们也给出了微分电导率在不同温度下随输入端费米能级的变化关系。

With the development of modern society, differential equations is widely used in engineering astronavigation, economy, financial etc.

在力学、物理学、生态学、生物学、经济学等多种应用技术中往往用时滞微分方程比常微分方程来刻划更符合实际。国内外学者也对时滞泛函微分方程的基本理论及定性理论进行了卓有成效的研究。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。