1、

The basic concept, working principle and technical classification of smart antenna are introduced, including the description of principles and algorithms of the switched beam and tracking-beam smart antennas. The impact of the smart antenna technology on the cellular wireless communication system is also discussed.

文章简述了智能天线的概念、原理和分类,包括预多波束和自适应波束两种智能天线的原理和算法,论述了智能天线技术对移动通信系统性能的影响。

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2、

In view of the shortages of the existing sensor in testing rigid load and semi-rigid load, a new strain beam sensor is developed. The component structure and working principle of the new sensor is introduced, and the advantages of this new earth pressure sensor are summarized.

针对现有土压力传感器在测试刚性、半刚性荷载时的不足,研发了一种新型的应变梁式土压力传感器,着重介绍了该传感器的结构组成和工作原理,分析总结了该传感器的优点。

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3、

The working principle, tecnology arrangement, structure of rolling mill and their characteristics of new developed edge mill for π-beam steel were introduced.

介绍了新研制的π型花边轧机的工作原理、工艺布置、设备结构及其特点。

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4、

This paper introduces the construction situation of biggest span prestressing bend beam, and brings up problems paying attention in key working procedure.

该文所介绍的是目前国内最大跨径预弯梁的施工概况,提出的一些关键工序应注意的问题。

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5、

Machine tool fro working by ionic beam processes

离子束处理加工机床

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Working out and management system of procedure document for electron beam welding

电子束焊接工艺文档编制与管理系统

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7、

through test and analysis of working stress on balance beam and lengthwise beam of dozer frame, a strength design method and the basis for compiling load spectrum are given in the paper.

通过对推土机平衡梁和车架纵梁的工作应力测定与分析,掌握了推土机的强度设计方法,为编制载荷谱打下基础。

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8、

Compared to the single-mode fiber and multi-mode fiber, collimator has higher parallel light beam, smaller beam divergence ( 0.25 °), longer working distance(~ 10cm) and higher sensitivity coupling efficiency.

与单模或多模光纤相比,光纤准直器的光束平行度更高、光束发散角更小(小于0.25度)、工作距离更长(约10cm)、光束耦合效率对入射角更敏感。

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9、

In beam pump system, usually using tubing anchor to fix pump, and using bleeder Installed on the tubing pump to improve its working environment.

在有杆泵系统中,经常采用油管锚定来改善工况,通过在管式泵的上方安装泄油器来改善油井施工作业时的工作环境。

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10、

Nonlinear beam-wave interaction in coupled-cavity TWT working in plasma-cavity hybrid mode

等离子体-腔混合模耦合腔行波管非线性注-波互作用分析

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11、

The nonlinear beam-wave interaction in coupled-cavity TWT working in plasma-cavity hybrid mode, was studied using the theory of mode expansion, and the nonlinear beam-wave interaction self-consistent working equations have been obtained.

用模式展开的方法分析了等离子体腔混合模耦合腔行波管的非线性注波互作用过程,导出了其考虑相对论效应的非线性注波互作用自洽工作方程组。

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12、

Calculates the vibration frequency inherence of the beam, offers the references for designing the working frequency of beeline electromotor which drives the plot pen.

计算出横梁的固有振动频率,为设计绘图仪中驱动绘图笔的直线电机工作频率提供参考。

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13、

While Doppler Active Radar Seeker ( ARS) could be aided SINS by beam velocity all the times and remedy the BDS's default of lacking velocity information and continual working ability.

多普勒主动雷达导引头(ARS)可利用波束速度连续辅助惯导,弥补“北斗”系统无速度信息、不能全程使用的缺点。

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14、

In addition, analytic expression of the waist spot size and working distance of output Gaussian beam were derived, and the influence of coreless fiber and GRIN fiber ′ s length upon fiber-lens parameter was discussed by numerical simulation results.

推导了出射高斯光束的束腰半径和工作距离的解析表达式,进而对该光纤透镜做了数值模拟,讨论了无芯光纤和GRIN多模光纤的长度对光纤透镜参数的影响。

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15、

a beam splitter is one of the main working parts in any interferometer.

分束器是所有干涉仪里主要工作元件之一。

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16、

Reactive ion beam etching process is one of the ultrafine machining techniques which have been rapidly developed in recent years. Patterns on the working pieces are made by sputtering effects and chemical reaction which occur when reactive ion beam bombard the solid surface.

反应离子束刻蚀技术是近年来发展起来的一种微细加工技术,它利用反应离子束轰击团体表面时发生的溅射效应和化学反应剥离加工工作上的几何图形。

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18、

Deposition, implantation and quenching effects will be produced as pulsed beam working on the sample surfaces.

脉冲等离子体作用于样品时,可在材料表面产生沉积 、 注入、屏火等效应.

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19、

The glove can working area when the light beam is focused on an object.

并且可以轻松使光线聚集在物体上,非常方便使用者.

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20、

This paper introduces the working principle of voltage source with half-bridge inverter for electronic beam welder.

介绍了一种 半桥 逆变式电子束焊机高压电源的工作原理和控制电路.

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