The clothing industry of china will totally place itself in fierce international competition . clothing produce characteristic of " many variety , small quantity , short cycle " require us transform the traditional clothing industry with the new and high technology and realize the quick reaction 中国的服装业将完全置身于激烈的国际竞争中，服装生产“多品种、小批量、短周期”的特点要求我们用高新技术改造传统的服装产业，实现快速反应。
With this experimental system , the influence of short cycle fluctuation of the space environment on thermal control system is investigated and the method that reducing the experimental simulation time is tried and analyzed . the experimental results are used to validate the numerical emulational platform 利用该系统，本文实验模拟了热辐射环境的短周期波动对热控制系统造成的影响，用压缩周期的方法模拟了热辐射环境长周期波动的影响并进行了分析。
Its sedimentary type has the characteristics of both the stable deposit of gondwana continent and the low energy deposit under coastal conditions , and mainly consists of a set of tidal - flat sedimentary assemblage whose sedimentary environment is related to short - period and small - scale inshore glacier activities 其沉积类型既有冈瓦纳大陆稳定沉积特点，又有滨岸条件下的低能沉积特征，主要为一套潮坪沉积组合，其沉积环境与短周期小规模近岸冰川活动有关。
The first class methods are the classical frequency domain - based equivalent system methods ( f - esm ) which recommended by mil - f - 8785c and mil - std - 1797a . five longitudinal low order equivalent systems and fourteen lateral ones are discussed in detail and some pieces of advice are given . also conduct an investigation in the time domain - based equivalent system methods ( t - esm ) . and for longitude short period movement , two least square ( ls ) identification methods of estimating its parameters are studied 研究了求取高增稳飞机的低阶等效系统的几种方法：研究了经典的频域等效系统方法，针对纵向5种、横向14种构型的低阶等效系统进行了拟配实践，并提出一些有益的看法；以频域等效系统方法为基础，提出了时域等效系统新方法；以最小二乘辨识为基础，提出了两种纵向短周期低阶等效系统时域辨识方法(等效延迟时间_ q参与或不参与) 。
The results show that there are really obvious scintillation in gcrs intensity at the periods of 10 - 60 minutes as expected by many scientists , such as dorman , et al . then we analyzed the data observed at beijing snm between two solar cycles " transitional phases by using wavelet method 我们还计算了几个磁暴前银河宇宙线强度的短周期的变化特征，计算结果显示，磁暴前银河宇宙线强度在10 ? 60分钟范围内出现明显的闪烁，这是磁暴前银河宇宙线强度变化的的一种先兆特征。
The obtained results indicate that compared with the clay layer , the liquefied sand layer takes a decreasing effects on the short period component of the surface ground motion and the effects increase with increasing of the thickness 、 depth and width of the liquefied sand layer ; the liquefied sand layer takes a increasing effects on the long period component of the surface ground motion but the effect is not obviously ; to the input earthquake wave , the demarcation point of strengthens and weaken is about 0 . 6s 主要结论为:和同样的粘土层相比,液化层的存在对地表上地震动的短周期分量主要起减弱作用,且减震效果随着液化层埋深、厚度的增加而变强;对长周期分量主要起加强作用,但是效果不太明显;对所输入的地震波来说加强减弱的分界点所对应周期为0 . 6s左右。
A flight trajectory math model of an assumed cruise aircraft is built according to a simple blue print of the flight control system , with the foundation of a particular analysis of its kinematics and dynamics . a linear light - disturbed minor - cycled movement model and the transform function models are got through some simplifications 本文以某个虚构的巡航式飞行器的飞行控制系统为研究对象，首先讨论了一个简单的总体方案，然后根据此方案，在详细分析此飞行器运动学与动力学的基础上，建立了飞行器飞行仿真数学模型，并在允许的条件下进行简化得出了此飞行器线性化小扰动短周期运动模型与传递函数仿真模型。
Then in allusion to biased momentum wheel system , based on classical control system a pid controller was design about pitching channel . according to specialty of roll - yawing channel , this paper discuss long - time cycle movement and short - time cycle movement . when design the control method of long - time cycle movement , whiff thruster is used to assistant the control system . when design the control method of short - time cycle movemen , in order to sovle the problem of coundn ’ t abtain the angular velocity signal , nonminimum phase controller advanced by terasaki is used 然后针对偏置动量飞轮系统,基于经典控制理论设计俯仰通道的pid控制律,根据滚动?偏航通道耦合的特点,分别讨论了由轨道角频率和章动频率引起的长周期运动和短周期运动。其中长周期运动控制律设计时,结合了喷气推力控制来辅助偏置动量控制;短周期运动控制中,为了解决不能获得角速度信号的问题,采用terasaki提出的非最小相位控制器进行控制。
This paper investigated the formed influenced of eucalyptus cold injury situation , analysed the genetic factor , environmental factor , and managemental countermeasures on eucalyptus cold injury , it summarized the suitable eucalyptus species and clone for different areas , which provided the scientific basis for developing eucalyptus short - cycle industrial raw material 摘要调查了2005年福建桉树冻害情况，分析了遗传因子、环境因子和经营措施对桉树冻害形成的影响，初步总结出各区域适宜的桉树树种、无性系，为福建省今后进一步发展桉树短周期工业原料林提供科学依据。
In this part , response spectrum and fourier amplitude spectrum are studied , the main results are as follows : 1 ) response spectrum analysis : a ) absolute acceleration response spectrum ( sa ) : ( 1 ) in general , response spectrum decrease with depth , for m < 4 . 5 , the shape and the predominant period of each response spectrum in different depths are similar : the variation of spectra with depth focus on near - surface level ; the normalized spectra are similar to each other , except the predominant perk value in middle depth of some earthquakes is higher than other depth 地震动反应谱沿深度变化的规律( l )加速度反应谱( s 、 )沿深度的变化规律一般，加速度反应谱( s 。 )随深度的增加而减小。震级较小时，不同深度各测点的反应谱形状很相似，卓越周期基本一致;浅层处反应谱沿深度的变化梯度较大;深层处反应谱大小比较接近;强震时，反应谱形状在短周期有较小差别，长周期逐渐接近。
