解析函数

The kinematical finite source is considered as stacking of dynamic point sources based on the dynamic independent principle.

点源格林函数解析解的基础上，根据动力学的独立性原理，把运动的有限尺度破裂源看做是多个动态的点源的叠加。

The research for the three-photon correlated imaging with incoherent light of lensless Fourier-transform is reported.

首次从理论上提出了利用非相干光场在无透镜的情况下，得出高阶干涉光的三阶关联函数解析式，并证明了非相干光场通过傅里叶变换，完全能够实现多光子的关联成像。

This is due to that the characteristics lenth significantly affects th e maximum lateral electric field and the length of velocity saturation region,bo th of which are very important in modeling the drain current and the substrate c urrent.

在以双曲正切函数描述的 I- V特性基础上，该解析模型的运算量远低于基于数值分析的物理模型，其中提取参数的运用也大大提高了模型的精度，模拟结果与实验数据有很好的一致性。

Secondly, we compared four analytical models of the chemical evolution of the Galactic disk based on the new G-dwarf metallicity distribution.

其次，以我们得到的G矮星金属丰度分布函数作为观测约束，比较了四种采用星际介质化学丰度非均匀假设的解析模型。

Due to transient inductances of AC exciter are functions of rotor position and armature winding currents,which are easily influenced by armature current switch on and ferromagnetic material saturation,therefore,analytical method has its limitation to consider current time-variation and ferromagnetic material saturation.

摘 要：由于交流励磁机电枢绕组电流在导通期间的时变性以及铁磁材料饱和特性的影响，瞬态电感是转子位置和电枢绕组电流的多元函数，解析法难以准确计及电流时变性和铁磁材料饱和性的影响。

By using eigenvalue method and Bessel functions, the closed solutions of 3D transient temperature field in each layer of the cylinder were deduced.

利用特征值法和Bessel函数，导出了各层柱体中三维瞬态温度场的封闭解析解。

Using the analytical method, this paper presents the formulas for the relation of the inner fleet angle and clearance between wound-on coils of mine hoist in func-tion of drum and rope diameters.

本文用解析法求出了以绞筒直径、钢丝绳直径为函数的矿井提升设备绳弦内偏角和缠绳间隙关系的表达式，并按此绘制了供实际应用的曲线图。

The methods of discretization is used in the vertical direction to the silo structure ,thus establish cylindrical shell unit, cone shell unit , plate unit , foundation unit, and its semi-analytic displacement function A compute program compiled is used to calculate the static displacement and free vibratioa

本文对筒仓结构进行整体离散，构造了各种单元半解析的位移函数，建立环壳单元、锥壳单元、板单元、地基单元。并编制了程序，计算了各结线的静位移及其自由振动的频率和振型。

When the rotational speed difference between the flywheel and clutch disk plate is small enough, that is to say, the rotational speed difference between the flywheel and clutch disk plate is smaller than what is set in advance, the flywheel and the clutch disk will engage as quickly as they can. So the shock intensity and slipping friction work are all very small when the clutch engages with the flywheel.

在E.T.Driver输出驱动扭矩小于阻力扭矩时，采用基于最小值原理的换档控制策略对滑摩功和冲击度进行综合最优控制，使滑磨功和冲击度达到综合最优，并得到了以解析式形式表达的系统最优控制函数。E.T。

It is pointed out that the critical stretch of the sphere composed of the first kind of materials given in this chapter is less than that for the perfect materials. Finally, stability of solutions of the cavitated bifurcation equation is discussed. 3. In Chapter 5, problem of radial motion for a solid sphere composed of an imperfect incompressible hyper-elastic material, subjected to a surface tensile dead load, is examined.

第四章中，分别研究了两类具有缺陷的可压缩超弹性材料球体在表面均布的径向拉伸作用下的空穴分岔问题，得到了两类材料球体的径向变形函数的参数型解析解和参数型空穴分岔解，同时指出了本章中给出的第一种缺陷材料组成的球体与无缺陷材料的相比会提前发生空穴分岔。

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％。