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The signals during transformer impulse test are considered to be evolving in time, also is non-stationary signals, so we can design a software algorithm for noise reduction based on discrete Gabor transform, and the basic principle is: The Gabor coefficients of Effective signals during transformer impulse test is centralized in the time frequency range, and the peak-to-peak value is big, whereas the noise Gabor coefficient distribute in the entire time frequency range equally, the peak-to-peak value is small, we can realize the desired signal and the noise separated through frequency mask function.

考虑到冲击试验中的信号都是时变信号，也就是非平稳信号，因此设计了一种基于离散GABOR变换的软件滤波算法对冲击信号进行滤波，其滤波理论依据是：有效信号的Gabor系数在时频域分布比较集中，幅值比较大，噪声的Gabor系数均匀分布于整个时频域，幅值较小，通过构造时频掩模函数来实现有效信号与噪声的分离。

The spectrum analysis shows that ① Infrasonic waves produced by meteor are mostly very short, lasting one to five minutes;②Periods of the infrasonic waves range mostly from 40 to 408 seconds, and a few waves range from 40 to 480 seconds;③ During 7:21 p.m. to 8:41 p.m. on Nov. 17, the infrasonic waves were much denser. After 8:41 p.m., the waves become more and more sparse, all waves conform to those observed with naked eyes;④ Amplitudes of infrasonic waves from meteor differ significantly from each other (weaker ones below 5 to 10 Pa, medium ones from 10 to 20 Pa, and stronger ones from 20 to 40 Pa). Two of the strongest ones reach 75 Pa and 50 Pa respectively around 7:28 p.m. and 8:07 p.m. on Nov. 17. An explanation of above results is given.

频谱分析结果表明：①各流星产生的次声波大都很短暂，持续时间为1~5min；②流星次声波的周期大都在40~408s；③在1998年11月17日19：21-20：41期间流星次声波仍很密集，20：41后才变得越来越稀疏，恰与肉眼观测结果相符；④流星次声波的振幅彼此相差很大，较弱的在5~10Pa，中等的在10~20Pa，较强的在20~40Pa，最强的两个波在11月17日19：28和20：07前后分别达到75Pa和50Pa。

Normally, an integer has a range of -32,767 to 32,767 and long integers can range from

通常，整数的范围是从-32，767~32，767，长整数的范围从-2，147，483，648~2，147，483，647。

The use of a wide range of: Kai Kwong Plastic floor there is a wide range of residential use of the bedroom, hall, kitchen and toilet ground pavement: be used in buildings, offices, shops, restaurants, factories, schools, hospitals and other more suitable ground pavement the swimming pool, sauna room, the basement of the laying of the ground

使用范围广：广凯塑钢地板可广泛使用有住宅的卧室，厅堂，厨房及卫生间的地面铺装：方可用在大厦，写字楼，店铺，餐厅，工厂，学校，医院等地面铺装更适合雾水的游泳场，桑拿浴室，地下室的地面铺设

Hangzhou Wulin Men from the west to see the far-sook security high tower standing on the cliff range upon range of hills, the mind has long been a fly on West Lake.

从杭州武林门西行，远远看见保淑塔高高耸立在层峦山崖上，心绪早已飞到西湖之上了。

Using the laser range finder, a soldier lases to the target to get the exact range and then dials in the meters to the target, which are displayed in a tiny window on the day-night sight.

使用激光测距仪，一名士兵lases的目标得到确切的范围，然后拨打了米的目标，这是显示在一个小反射的日夜均可用的目镜。

His arsenal of shots is terrifying for precision, potency and versatility, equally dangerous from short-range, long-range, dead-ball, first-touch or aerial situations, left-foot and right-foot indiscriminately.

他是阿森纳队的投篮可怕的精确度，效价和多功能性，同样危险的，由近程，远程，死球，第一次接触或空中的情况下，左脚和右脚不分青红皂白。

The firing unit comprises a four-cell missile launcher; a monopulse J-band tracking radar with an operational range up to 17,000m; a TV tracking system with an operational range of over 15,000m in clear weather; an infra-red localiser; a data processing unit; a wire network between itself, the search unit, and other firing units.

发射单元包括一套四单元导弹发射装置；一部单脉冲 J-波段操作距离达到17，000 米的跟踪雷达；一套电视跟踪系统，操作距离在晴朗天气15，000米；红外定位器；一套数据处理单元；它自身、搜索单元和其它发射单元之间的一个导线网络。

The main contents and results of this paper are listed as follows:Based on the finite element analysis software ANSYS establish a bridge of three-dimensional mechanical model of CWR;Based on an actual project,calculate different conditions of three forms of bridge and research the reasonable removal scope of fastener;Research on the allowed lock temperature rail track construction of partial maintenance of range.By analyzing the result obtain the best way to replace the support of a bridge and the range of removal of the bearing and permission of rail temperature of construction.It supports some recommendations for the replacement of city construction maintenance.

本文主要研究内容为：基于有限元分析软件ANSYS建立了桥上无缝线路三维力学模型；依据某实际工程，分析计算了三种桥梁形式在不同顶升工况下的钢轨和扣件受力，研究了扣件的合理拆除范围；对维修后局部钢轨施工锁定轨温的允许范围进行了研究；分析得出了城轨桥梁更换支座施工的最佳顶升方式、扣件拆除范围和允许施工轨温，为城轨桥梁更换支座的施工维修提出了一些建议。

These tendencies are in accord to the geochemical features of the lodes and are not obvious in a range of several tens of meters, but are very clear in a range of several hundred meters.

蚀变矿物组合及强度在空间上也具有一定的变化规律：由深部到浅部或随远离主控矿构造，蚀变强度逐渐变小，红化或绿化(绿泥石化、绿帘石化、黑云母化)逐渐减弱。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。