查询词典 radio frequency

PYX1-S type signal power supply panel is a special equipment for eight in formation automatic block with audio frequency shift modulated track circuits.It can supply power for signal lighting,track circuit,audio frequency shift relay circuit,approaching circuit,audio frequency shift control and detecting circuit.

PYX1-S型八信息移频电源屏是八信息自动闭塞的配套设备，可为信号点灯、轨道电路、移频继电器电路、接近电路移频控制检测电路提供电源。

The UM2000 frequency shift signal is a multiple frequency-modulated signal, of which the frequency modulated constant is a key parameter.

UM2000移频信号是一个多频调制的调频信号，其中调频常数是一个关键的参数。

Frequency regulation is a measure that states the difference between no-load and full-load frequency as a percentage of full -load frequency.

频率调整率频率调整率是指空载和满载之间频率的差别与满载频率的百分比。

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公司主要产品有：数字局用同轴射频电缆，数字局用对称射频电缆，高频同轴电缆，数字通信对称电缆、高频数字传输电缆、保安与工业检测电缆、多重结构多芯控制综合电缆、多媒体电缆，交联通信电缆，控制电缆，屏蔽电缆，电器安装线， UL电子线，机房等场合用阻燃软电缆，普通主干网络电缆，普通支路网络电缆，电梯电缆，仪器仪表电缆，聚四氟乙烯高温电缆，超五类双绞线，程控交换机配线电缆，高频电缆，低烟无卤电缆、各类阻燃和耐火电缆、尼龙护套线、汽车线、数据传输电缆，HFC接入网用同轴电缆、物理发泡75欧姆系列、CATV同轴电缆、50欧姆系列RF同轴电缆、低损耗物理发泡50欧姆系列同轴电缆，控制电缆、橡套电缆、电焊机电缆、硅橡胶电缆、船用电缆、矿用电缆、聚氯乙烯绝缘电线电缆、计算机电缆、电站用电缆、电机引接线、橡皮绝缘电线、编织电线、高温导线，交联聚乙烯电缆船用电缆、耐高温防火电缆等，同时承接特殊型号规格电线电缆产品的研制、开发等业务。

Refining a variety of high-frequency plastic welding machines, high-frequency fusing machine, high-frequency metal heat treatment machines, wide-band ultrasonic machine, blister sealing machine, heat shrink packaging machine and other packaging equipment!

精制各种高周波塑胶熔接机，高周波熔断机，高周波金属热处理机，全频段超声波机，吸塑封口机，热收缩包装机等各种包装设备！

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 reciprocal effects between the frequency veering and the sensitivity ofmistuning for a bladed disk are studied. The investigation is based on a finite elementmodel. The reason and features of frequency veering of the bladed disk are analyzed.By using the localization parameter, the effects of mistuning on the system modallocalization of the bladed disk are analyzed in the frequency veering region.

分析了叶盘系统频率转向现象产生的原因及其特点；利用本文提出的模态局部化参数，研究了频率转向区域内叶盘系统的高密集模态对失谐的敏感性；分析了频率转向区域内失谐叶盘系统的振动响应局部化特性。

The analyzing aboved is made from earthquake's space distributing, periodicity, migration phenomenon, repetition, strength, frequency, b value etc., according to data of earthquake station net in Shaanxi Province and microseisms station net watching results in Xi'an area. 3 group faults which are NEE, NW and EW direction control earthquake activities in Guanzhong area. Epicenter depth mostly is 5-25km and in shallow-focus earthquake. Earthquake in east area of Guanzhong was stronger and weaker in the West in history. Fen-Wei earthquake belt showed more activity. Microseisms and small seisms is main movement in recent earthquake, it has 8-10years' period of movement and show the trend that they are strong in the West but weaker in the East. And frequency and biggest magnitude of earthquake is supplement each other. In next years earthquake frequency will lessen but strength enhance, about M4. It presumes there is earthquake climax period in Guanzhong area in 2040 and M5-6 earthquake is happened at that time.

本文在对关中地区区域构造及重磁异常特征的分析基础上，根据陕西省地震台网监测资料及西安地区微地震台网监测成果，从地震的空间分布特征、周期性、迁移现象、重复性、强度、频度、b值分析等方面，对区域地震活动特征、关中地区地震活动规律进行了分析研究，关中地区地震活动主要受北东—北东东向、北西向、东西向三组方向的断裂控制，震源深度多为5—25公里，均属浅源地震，历史地震表现为东强西弱，东部的汾渭地震带表现出较强的地震活动性，近代地震活动主要以微震或小震为主，存在着8—10年的活动周期，近期表现出西强东弱的趋势，地震的频度与地震最大震级呈互补关系，未来的几年间，地震频度会有所减少，强度会增大，将有可能发生4级左右的地震，推测在2040年左右，关中地区将进入地震高潮期，届时将可能有5—6级左右的地震发生。

Our company can provide you with Murata capacitor; resistors; coil; Squelch components; oscillator; piezoelectric components; communications equipment filter; high-frequency components; high-frequency components; audio-visual machine filter; wave thick film chip resistors value; solid tantalum capacitors ; sheet Second triode; series of power inductors; High Frequency Wound Chip Inductors; spacing pin; headphones Block; FFC | FPC connector; switch; soft cable; and other products

本公司可为您提供村田电容；电阻器；线圈；静噪元件；振荡子；压电元件；通讯设备用滤波器；高频元件；高频组件；声像机用滤波；波厚膜片状定值电阻器；钽固体电容器；片状二三极管；系列功率电感器；高频绕线型片式电感器；间距插针；耳机座； FFC|FPC连接器；开关；软排线；等产品

The main scope of application: Diamond Cutter welding, carbide saw blades, machining with carbide tools of welding, such as diamond tools, drill, tools, planing, milling cutter, reamer, such as welding and cutting tools; standard parts , bolts of hot upsetting, such as high strength bolts, nuts, etc.; hardware tools, hand tools, heat treatment, such as pliers, wrenches, rotary tools, hammers, axes; all kinds of automobile fittings, motorcycle fittings of high-frequency quenching treatment, such as : crankshaft, connecting rod, piston pin, crank pin, sprocket, camshaft, valves, all kinds of rocker arm, rocker shaft; gearbox various gears, spline shaft, axle bronchitis, all kinds of small shafts, high-frequency quenching, such as various fork of the handle; metal parts of the heat treatment, such as a variety of gears, chain wheel, the wheels, vibrating screen, a variety of shaft, spline shaft, and marketing of high-frequency quenching treatment, etc.; machine tool machine tool industry bed rail, such as the quenching treatment.

主要适用范围：金刚石刀头的焊接，硬质合金锯片、机械加工用硬质合金刀具的焊接，如金刚石刀具、钻具、车刀、刨刀、铣刀、铰刀等刃具的焊接；标准件、螺栓的热镦，如高强度螺栓、螺帽等；五金工具、手工工具的热处理，如钳子、扳手、旋具、锤子、斧头；各种汽车配件、摩托车配件的高频淬火处理，如：曲轴、连杆、活塞销、曲柄销、链轮、凸轮轴、气门、各种摇臂、摇臂轴；变速箱内各种齿轮、花键轴、传支半轴、各种小轴、各种拨叉等高频淬火的处理；金属零件的热处理，如各种齿轮、链轮、行车轮、振动筛、各种轴、花键轴、销等的高频淬火处理；机床行业的机床床面导轨的淬火处理等。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。