查询词典 indoor antenna

Passive Intermodulation Properties of mobile communication antenna is discussed.

分析了移动通信系统中的无源互调干扰。

Smart antenna adopts SDMA, and in terms of the difference of transmission direction,it can distinguish signals of the same frequency and the same time interspace.

智能天线采用空分多址，利用信号在传播方向上的差别，将同频率、同时隙的信号区分开来。

Methods Forty-four EBTB patients weredivided into an experiment group and a control group. All the patients of the two groups were treated with generalchemotherapy, the patients of experiment group accepted endobronehial decimeter wave therapy at the same time. Thepurulent secretion or caseous necrosis of the diseased region was drawn-off from the bronchi lumina by bronchoseope,then the antenna of the decimeter wave irradiator was inserted into the diseased region through the biopsy pore to per-form the radiation.

共选取44例狭窄型支气管内膜结核患者，将其随机分为治疗组及对照组。2组均给予常规抗结核药物治疗，治疗组患者同时介人纤支镜分米波治疗，将纤支镜插入病灶支气管内，充分吸出病灶支气管管腔内脓性分泌物或干酪样坏死物后，经纤支镜活检孔插入分米波天线，并将天线尖端插入病灶内实施分米波辐射。

Finally, the transverse leaky phenomenon in NRD-guide slot antenna is investigated for the first time.

论文最后首次对NRD波导激励的缝隙天线的横向泄漏现象进行了研究。

Are produced from the sale of the production-oriented enterprises, has many years experience in production and operation, product is widely used in antenna / wire and cable sheathing, leatherette, flooring plastic, injection molding, brick membrane, drains, flower tubes, etc. can be applied to the soft / hard pvc in all industries.

是自产自销的生产型企业，有多年生产经营经验，产品广泛应用于天线/电线电缆护套，人造革，地板胶，注塑，砖膜，排水管，花管等能应用到软/硬pvc的各个行业。

The main console has the receiver (with pre-amplifier on top), A-scope, and related controls on the left, antenna control module on the right, and a large, 15-inch diameter PPI scope in the lower unit.

主控台有接收机A显示器及相关控制键在左，天线控制组件在右，直径15英寸的PPI显示器在下方。

Only a properly matched antenna system will allow maximum power transfer from the 50 transmission line to the radiating element.

只有一个匹配合适的天线系统才能在发射时使能量充分辐射出去。感染性休克的真正治疗在于预防。

The multi-beam receiver is the most recent addition to this exclusive club, and it provides SETI scientists with a level of sensitivity that could never be achieved with the line feed antenna .

多波束接收器是其中最新的一个成员，它将为SETI的科学家提供使用线反馈天线所永远无法企及的灵敏度。

This paper considers the linear transceiver optimization problem for multi-carrier multiple-input multipleoutput channels with per-antenna power constraints.

本文讨论线性收发器的优化问题。在多载波多输入的渠道，每个天线功率的限制。

First, the basic principle of location estimation and the operation principle of smart antenna as the key technology of 3G were introduced.

首先介绍了移动通信中常用的位置估计算法的基本原理及第三代移动通信采用的关键技术智能天线的基本工作原理和特性。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？