高频实验,high frequency experiment
1)high frequency experiment高频实验
英文短句/例句
1.The Realization of Virtual High Frequency Laboratory Instruments Based on Virtual Instrument Technology;基于虚拟技术的虚拟高频实验室仪器的实现
2.Study on high frequency two-stage pulse tube refrigeration at 35K:Part Ⅱ. Experimental verification35K两级高频脉管制冷研究:Ⅱ.实验验证
3.Design and Realization of Simulation Experiment of High Frequency Electronic Circuit高频电子线路仿真实验的设计与实现
4.high-frequency laboratory standard signal generator实验室用高频标准信号发生器
5.CATHETER ABLATION OF THE ATRIOVENTRICULAR(AV) CONDUCTION SYSTEM BY HIGH FREQUENCY EHERGY IN DOGS高频电能消蚀房室传导系的实验研究
6.Experimental Research on High Frequency Vibratory Stress Relief Technology and Vibratory Stress Relief Set;高频激振时效技术及装置的实验研究
7.Experimental Study on High-Frequency Electromagnetic Radiation in Hall Thruster霍尔推力器高频电磁辐射的实验研究
8.Application of Multisim10 in high frequency circuits experimentMultisim10在高频电子电路实验中的应用
9.Development and Study of Virtual High Frequency Circuit Experiment System虚拟高频电路实验教学系统开发研究
10.Experimental Study on Coupling High-Frequency Fiber-Optic Vibration Sensor耦合型高频光纤振动传感器实验研究
11.The experimental research of tracking the hurricane with HF backscattering高频返回散射台风跟踪技术实验研究
12.Study of High Voltage and High Frequence Complex Electric Field in the Process of Air Cleaning;高压高频复合电场在空气净化过程的实验研究
13.Empirical Study on Effect of Therapeutic Alliance of Radiofrequency Ablation and High-Frequency Thermotherapy on the Invasion of Cony Liver Cancer Cell Line VX2;冷极射频联合高频热疗对兔肝VX2肿瘤侵袭能力改变的实验研究
14.A SYSTEM FOR EXPERIMENTS OF BIOELECTROMAGNETICS FORM DC TO UHF一种从直流到超高频生物电磁学实验系统
15.The Study of Therapeutic Efficacy of the Nanometer High-frequency Square Pulse Light Technology Targeting Kidney Cancer;纳米—高频脉冲光技术靶向治疗肾癌的实验研究
16.Experimental Research for Ozone Generation Using High Frequency Dielectric Barrier Discharge;高频介质阻挡放电产生臭氧的实验研究
17.The Design and Development of Network-based Virtual High Frequency Electronic Circuit Laboratory;基于网络的高频虚拟实验室的设计与开发
18.Establishment of Insertion Infection Model and Role of High Requency Electric in Prevention of Infection in Rabbits;高频电预防兔内置入物感染的实验研究
相关短句/例句
Virtual High frequency electronic circuit experiments虚拟高频实验
3)high-frequency circuit experiment高频电路实验
1.Based on an example of reformation onhigh-frequency circuit experiment,the idea of establishing experimental platform and experimental method was concluded,and then the importance of the mutual supporting of experimental platform and experimental method to improving the quality of experimental teaching was emphasized.从高频电路实验改革的实例出发,总结了创建实验平台和实验方法的思路,并强调了这两方面的相互支撑对于提高实验教学质量的重要性。
4)High Frequency Electronics Experiment高频电子线路实验
5)scanning frequency experiment扫频实验
6)test at elevated temperature高温实验
延伸阅读
甚高频和超高频多普勒雷达工作在30～3000兆赫频段的气象多普勒雷达。一般具有很高的探测灵敏度。因探测高度范围可达1～100公里，所以又称为中层-平流层-对流层雷达 (MST radar)。它主要用于探测晴空大气的风、大气湍流和大气稳定度（见大气静力稳定度）等大气动力学参数的铅直分布。原理 这类雷达通过以下几类电磁波和大气的相互作用,对晴空大气进行探测:①由大气湍流运动引起的折射率不均匀结构对电磁波的散射；②稳定大气分层结构对入射电磁波的部分反射；③有时出现于中层大气的自由电子对电磁波的散射；④中层大气中的流星余迹散射。散射体积内空气的运动，使雷达回波具有多普勒频偏。结构 MST 雷达的结构和气象多普勒雷达大致相同。其特点在于：它们一般配备了大型天线（天线阵），有些甚高频段雷达的天线阵，尺度达 30～200米，采用半波振子阵或八木天线振子阵，以相控方式实现波束扫描。超高频段雷达采用直径几十米的可动抛物面天线，这类雷达的发射功率在几百千瓦至 2兆瓦之间，发射功率和天线面积的乘积值在106～1010瓦·米2之间。此外，为获得高灵敏度和高空间分辨率，在脉冲发射体制和回波数据处理方面，也采取一些技术措施。用途 利用回波的多普勒频谱可以进行下述各项测量：①探测大气风场的铅直分布。同一仰角，空间分辨率约为 150～1000米，采用脉冲压缩技术后，分辨率已可达到15米。②探测大气湍流结构。可以给出平均折射率湍流结构常数(C厒)的铅直分布。再引入一些大气湍流模式后，可以推算出湍流耗散率的铅直分布。③探测对流层顶高度及逆温层的高度和厚度。目前，甚高频和超高频多普勒雷达还只能测定上述气象要素的铅直廓线及其时间变化，而不能给出三维空间分布资料。参考书目K.S.Gage，B.B.Balsley,Doppler Radar Probing of the Clear Atmosphere,Bulletin of American MeteorologicalSociety,Vol.59，No.9，pp.1074～1093，1978.
