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Dynamic mechanical analysis,mechanical properties and the thermal dilatability measurements were used to study the effects of SF content on dynamic mechanical properties,impact strength,bending strength,bending modulus,specific strength,specific modulus,wear resistance and thermal dilatability.

采用动态力学、力学性能、热膨胀性能等测定研究了剑麻纤维的加入量对复合材料的动态力学性能、冲击强度、弯曲强度、弯曲模量、比强度、比模量、耐磨性能、热膨胀性能的影响，用扫描电镜观察了材料冲击断面和磨损面的形态。

In this paper, a new dynamic accuracy theory is developed. It called the theory of the tracing of dynamic measuring error. The total output error is discomposed to the internal units as well as the external noises. And its modeling methods are discussed. Wavelet neural network is an important method in modern signal processes.

近年来 ，国内外不少学者致力于动态测试方法及数据处理方法的研究，取得了一定的成果，但是对动态测试误差分析方法的研究还不够成熟，不能满足现代高精度测试的要求，需要深入研究新的理论和分析方法。

For the dynamic system of discrete coupled and nonlinear three phase voltage source PWM rectifier, the cycle switch average operator is introduced to transform the discrete system into continuous and the small signal perturbation method is used to transform the nonlinear system into linear, the small signal dynamic mathematical models are set up.

中文摘要：针对三相电压型PWM整流器这个离散的、耦合的、非线性的动态系统，引入开关周期平均算子将离散的系统变换为连续的系统，应用小信号扰动法将非线性的系统化解为线性的系统，进而分析系统的小信号动态数学模型。

For the dynamic system of discrete coupled and nonlinear three phase voltage source PWM rectifier, the cycle switch average operator is introduced to transform the discrete system into continuous andthe small signal perturbation method is used to transform the nonlinear system into linear, the small signal dynamic mathematical models are set up.

中文摘要：针对三相电压型PWM整流器这个离散的、耦合的、非线性的动态系统，引入开关周期平均算子将离散的系统变换为连续的系统，应用小信号扰动法将非线性的系统化解为线性的系统，进而分析系统的小信号动态数学模型。

Through careful analysis of the mathematics model of daily dispatching optimization of the cascade hydropower station, a new method based on the combination of two dimensional dynamic programming and discrete differential dynamic programming is proposed.

通过仔细分析梯级水库日优化调度的数学模型，提出了一种基于二维动态规划和离散微分动态规划相结合的混合求解策略，该策略理论上严谨，计算时间比较短，能满足日常调度的需要。

Adopting the latest research result on dynamic signal discrete spectrum analysis and the idea of virtual instrument, a dynamic signal analysis virtual instrument software system is developed, which is based on windows and has good performance.

并采用动态信号离散频谱分析领域最新研究成果，基于虚拟仪器设计思想，研制新方法、实时性好、精度高的基于Windows2000的动态信号分析虚拟仪器软件系统。

For the specification of the dynamic architecture of the system, the sub-function is designed as an abstract function with dynamic characteristic, which has a life-cycle of four phases: instantiation, establishment, execution and disestablishment.

为描述系统的动态结构，本文将子功能设计成一个具有动态特性的抽象功能，它有实例化、初始建立、功能执行和功能结束这样一个生命周期。

It is difficult to research dynamic stability of single-layer reticulated domes under earthquake action by Lyapunov dynamic stability theory.

基于这一理念，本文提出了动力稳定性实用判别方法，并在不同荷载和不同计算条件下进行了充分验证。

Vacuum dry is divided into static and dynamic drier.model fzg round vacuum drier or model fzg square vacuum drier belongs to dynamicdrier.model szg double cone rotating vacuum drier belongs to dynamic drier.

真空干燥设备分为静态干燥器和动态干燥机。yzg圆筒、fzg方型真空干燥机属于静态真空干燥器。szg双锥回转真空干燥机属于动态干燥机。

The dynamic simulation was conducted in two conditions and then the dynamic rollover threshold was determined. A dumping stability field test of the dump truck was also done and the rollover threshold was determined.

根据自卸汽车的使用环境及工作条件确定了两种计算工况，对自卸汽车作业稳定性进行了仿真分析，找出了各使用工况的侧翻临界值。

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％。