In STFT is window is of finite length, and we no longer have perfect frequency resolution.
快速傅立叶变换用到的窗宽度长度有限，因此不能获得完美的频率分辨率。
The vibration problem of pile with variable sections and finite length under exciting force is studied.
以锥形桩为例，用能量法对变截面桩的屈曲问题进行了深入研究。
The axisymmetric problems of a thick-walled elastic circular cylindrical shell with finite length are studied.
本文研究了一个弹性有限圆柱厚壳的轴对称弯曲问题。
Size curves of cocoon filaments can be regarded as non-stationary time series with finite length varying at random.
茧丝纤度曲线的预测研究茧丝纤度曲线可视为是长度有限且随机变动的非平稳时间序列。
Because of complexity the magnetic field distribution of a current-carrying solenoid of finite length has never been derived.
由于问题本身的复杂性，有限长载流螺线管的磁场分布至今未能进行计算。
The analysis of the problem of the finite length rod beingimpacted becomes very complex because viscoelasticity is introduced.
有限长细杆冲击问题的分析由于引入了粘弹性本构关系而变得比较复杂。
In this paper, we have simplified the sensor as a finite length cylinder, and calculated the energy loss and the temperature error.
本文将传感头简化成有限长圆柱，计算出在微波场中传感头的能量损耗和温度变化。
The pressure melting process of phase change material (the ice) around a horizontal elliptical cylinder with finite length is studied.
本文研究相变材料(冰)围绕水平椭圆柱，在有限长接触时的压力熔化过程。
This paper deals with the motion of viscous liquid column with finite length and two free surfaces in a vertical straight capillary tube.
本文考虑了竖直毛细管中具有两个自由面的有限长液柱的粘性流体运动。
In chapter two we study the transport property of open elliptic quantum dot, and discuss the effect of finite length lead on the conductance.
第二章我们研究了开口椭圆量子点的传输特性，并讨论了有限长导线对量子点电导曲线的影响。
There are two causes or cogging force in linear permanent magnet motors, resulting from the slotting and the finite length of the iron-cored.
永磁直线电机的定位力是由铁心开槽及铁心的有限长产生的。
The axisymmetric vibration characteristics of finite length fluid-filled cylindrical shells in elastic medium are analyzed systematically in theory.
从理论上分析了各向同性弹性介质中有限长充液圆柱壳的自由振动特性。
The exact expression is obtained by integration method for a tightly wound rectangular solenoid of finite length, the result is plotted and discussed.
通过直接积分得到了有限长密绕矩形螺线管自感系数的精确表达式，并对结果进行了图示和讨论。
The melting process of phase change materials (PCM) inside a finite length rectangular capsule which is heated isothermally at the bottom is analyzed.
对水平矩形腔内相变材料的接触熔化过程进行了研究。
The effects of finite length and finite width on the stress intensity factor are achieved by using the fundamental solution and the boundary condition.
利用基本解和边界条件可以计算板长和板宽对应力强度因子的影响。
Continuous resistive loading is used to extend antenna operating band in order to realize traveling-wave current distribution on a finite length antenna.
在有限长的偶极天线上，采用分布电阻加载法，实现行波电流分布，展宽天线的工作频带。
The finite length contact melting of phase change material around a moving horizontal elliptical cylinder driven by temperature difference was investigated.
提出并研究了相变材料围绕水平椭圆柱，在有限长接触时的温差熔化过程。
In concentric with the shaft of the plate to lay on a finite length solenoid power, the edge of the plate with a number of symmetrical fixed charged metal ball.
在该盘上与转轴同心地放着一有限长的通电螺线管，在盘的边缘均匀对称固定着若干带电金属小球。
In this paper, an experimental study on adaptive active control of sound trans-mission through a finite length water-filled cylinder in underwater is carried out.
本文研究了有限长充水圆柱置于水中，外声场透射形成的腔内声场自适应有源控制实验研究。
The lower structure in the coupling system is railway track where rails are considered as beams with finite length rested on double layer continuous elastic foundation.
下部结构为轨道，钢轨被离散为双层弹性基础上有限长度的梁。
A design model of a finite length rectangular pressure vessel was established based on the plate heap theory, the calculation formula of the side plate thickness was derived.
在平板叠加理论的基础上，建立了一个有限长对称矩形压力容器的设计模型，并推导出其侧板厚度的计算公式。
By using the generalized characteristics method, the compatibility equations on the characteristics are obtained. And the wave propagation of the finite length cylindrical shell is analyzed.
应用广义特征线理论得到了沿特征线上的相容方程，并采用数值积分方法分析了有限长圆柱壳的波传问题。
For making the theoretic results close to the fact, two methods used to calculate the internal force of beams with finite length bearing several point loads and on soil foundation were compared.
为了使理论结果能尽可能准确地反应实际情况，就土质地基上受多个集中力作用的有限长梁的内力计算方法进行了对比分析。
The polarization characteristics for the fields scattered by finite length perfectly conducted cylinder are presented in this peper, using the theory of radar polarization and high frequence analysis.
利用极化理论和高频方法对有限长理想导电圆柱后向散射场的极化特性进行分析和计算。
This paper studies problem of the average length of conjugacy classes of finite groups.
摘要本文研究有限群元素共轭类的平均长度问题。
The effects of finite word length in LMS adaptive noise canceller are discussed.
本文讨论了LMS自适应噪声对消器的有限字长效应。
A numerical model based on the finite element method incorporating an arc-length algorithm for nonlinear full-range analysis of UPC beams was developed.
建立了基于有限元方法并结合一种弧长算法的适用于UPC梁非线性全过程分析的数值模型。
The magnetic distribution of the single-coil and dual-coil magnetic rheological dampers with the same effective piston length was analyzed by using the finite element ANSYS software.
采用有限元ansys软件，分析了相同活塞有效长度下的单线圈与双线圈结构磁流变阻尼器的磁场分布情况。
The magnetic distribution of the single-coil and dual-coil magnetic rheological dampers with the same effective piston length was analyzed by using the finite element ANSYS software.
采用有限元ansys软件，分析了相同活塞有效长度下的单线圈与双线圈结构磁流变阻尼器的磁场分布情况。
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