查询词典 VHF

Being associated with three research projects, this dissertation makes deeply insight into the fast and accurate analysis, optimal design and manufacture of HF and VHF/UHF broadband omnidirectional miniature loaded wire antennas, loaded helical antennas and multiple-tuned VLF inverted L valley span antennas.

本文密切结合&十五&国防预研项目&软件无线电天线&和&宽带小型化天线&以及国防重点项目&某长波台发信天线电气参数分析与设计&等项目，研究了短波和超短波频段上的宽频带加载线天线、加载螺旋天线和超长波倒L形多路调谐山谷天线的快速精确分析、优化设计以及样机制作。

O. TARAS + CDL-39 (Communication and DATA left 39). The TARAS makes a simultaneous, digital and secured audio and data communication possible on VHF and UHF channels. The TARAS and the CDL-39 besides by the all digital, disturbance-resistant frequency jump radio system Rockwell Collins Ra90 are supported.

q。 EWS-39第二代整合式电战系统（初期型JAS-39A/B的电战系统只有RWR、ECM模组以及两具翼尖BOP403干扰丝／火焰弹撒布器，EWS- 39将增添两具派龙携带BOP402 反制措施撒布器、一具雷射警告装置、一具飞弹近迫警告器和一具BOL500拖曳式RF诱饵。

We are the spirit of "excellent quality, integrity of reciprocity" principle, we know the quality and technology on Product modeling and the importance of constant innovation and focus on high-quality requirements, the introduction of high-quality China-made high-quality steel and steel products "in Guangzhou Industrial Research Institute of Electrical and Mechanical Heat Treatment Technology Research Center "co-operation to provide customers with high-quality steel heat treatment and testing services, including high-quality vacuum hardening, nitriding, carbonitriding, boron nitrogen permeation, soft nitriding, annealing, quenching and tempering,, the high-frequency surface hardening, surface hardening VHF, chemical surface heat treatment, vapor deposition, such as titanium nitride.

我们本著&卓越品质，诚信互惠&的原则，我们深知质量及技术对制模及产品之重要性，不断创新服务及注重高品质要求，推出国产名优钢厂之优质钢材及与&广州市机电工业研究所热处理技术研究中心&合作为客户提供高品质热处理及钢材化验服务，含高质素真空淬火、氮化、碳氮共渗、硼氮共渗、软氮化、退火、调质、中、高频表面淬火、超音频表面淬火、化学表面热处理，气相沈积氮化钛等。

Its main products include vacuum sinteringVPS series, vacuum brazing furnace VBF series, vacuum sintering furnace VSF series , vacuum sintering furnace with high temp VQS series, vacuum furnace of many continuous heating chambers with VTC model, vacuum gas quenching furnace high pressure VQG series , vacuum VPG series pressurized furnace with gas, vacuum brazing furnace VBF series, vacuum vertical furnace VUF series, vacuum annealing furnace VAF series, vacuum tempering furnace VTF series, directional orystal vacuum melting furnace VDC series, vacuum VIF series induction melting furnace, semi-continuous vacuum induction melting furnace SVIF series, vacuum VHT series stortage kettle, etc., all of which have been widely used in materials, metallurgy, machinery, electron, aviation and other fields the like.

目前公司的主要产品有VQS系列高温真空烧结炉、VPS系列真空烧结炉、VBF 系列真空铝钎焊炉、VQB 系列高温真空铝钎焊炉、VQG 系列高压气淬炉、VTC 系列多室连续真空烧结炉、VUF系列立式真空烧结炉、VAF 系列真空退火炉、VHF 系列真空热处理炉、VDC 系列定向结晶炉、SVIF系列半连续真空感应熔炼炉、HJX系列真空焊接箱、QF系列高真空气动挡板阀，GQ系列真空球阀等，产品广泛应用于材料，冶金、机械、电子、食品、航空等领域；对系列外的产品公司可以根据用户的具体情况进行非标设计；最大程度地满足用户的要求；公司对自产真空炉产品保修一年，终身维护；同时提供对外真空设备改造，技术支持，维护维修等服务。

It can also send down LF, HF, VHF, UHF Using this method, HAARP is capable of extremely deep earth tomography: basically "x-raying" the earth.

使用这一方法，HAARP能够进行地下极深处的X射线断层摄影：基本上就是对地球进行X光造影。

The three antennas which receive VHF impulses emitted by a lightning discharge are placed on the vertices of a right-angled isosceles triangle with perpendicular sides 120 meters in length.

三个接收天线(接收闪电放电辐射的超高频脉冲)分别放在一个垂直边长为120米的直角等腰三角形的顶点，由到达天线的时间差来计算接收到的闪电脉冲的方向。

At the end of his career, he mostly worked on various projects for power amplifiers, RF filters and multiplexers, communications systems and VHF and UHF antennas.

在他职业生涯的最后阶段，他主要从事各种放大器，高频滤波器，多路复用器，通信系统和特高频，超高频天线的规划。

Characteristics of return strokes in Hefei Area measured by a VLF/VHF radiation recording system is presented.

根据观测资料，分析了利用闪电辐射场信号大容量采集系统观测到的合肥地区地闪回击特征。

In this paper, a detection method for multiple targets is presented in a special VHF radar system.

提出了一种特殊米波雷达体制下的多目标检测方法。

I heard it on VHF last night.

我昨晚在特高频率广播中听到那件事。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。