查询词典 gammar radiation

In this thesis, the radiation principle and the structure of slot antenna are studied and the impacts on its performance of every structure parameter in a slot antenna design are analyzed. On this foundation, a design plan of planar slot array antennas is proposed. The design has some structural feature as follows:(1) with different dielectric layers and microstrip line structure to guide the electromagnetic wave effectively;(2) the feeding network formed of microstrip line can match with the radiating slots expediently;(3) in order to increase the bandwidth of the antenna, the wider slot and branched feeding microstrip line are adopted to form a double resonance.

本文对缝隙辐射的原理、缝隙天线的结构作了探讨，分析了缝隙天线设计中各结构参数对其性能的影响，并在此基础上提出一种平面型缝隙天线的设计方案，它具有以下的特点：(1)采用分层结构，以不同的介电系数和微带线结构形成对电磁波的有效引导；(2)利用微带线构成馈电网络可以方便地与辐射缝隙进行匹配；(3)增大缝隙的宽度，并利用馈电微带线的枝节形成双谐振，以增加天线的带宽。

With environmental protection, light, noise, fire, water, no radiation, can be termed as a "green building materials", are the best alternative to red-brick products.

具有环保、轻质、隔音、防火、防水、无辐射，堪称为&绿色建材&，是替代红砖的最佳产品之一。

DEBBI RODMAN: You didn't have radiation?

诺文 ：您没有做电疗？

High quality light: no heat and radiation since there is no ultraviolet ray and infrared ray for the spectrum.

光线质量高：由于光谱中没有紫外线和红外线，故没有热量，没有辐射，属于典型的绿色照明光源。

High quality light: no heat and radiation since there is no ultraviolet ray and infrared ray for the spectrum.

光线质量高：由於光谱中没有紫外线和红外线，故没有热量，没有辐射，属於典型的绿色照明光源。

And LED is free of infrared ray and ultraviolet radiation pollution.

LED采用的发光材料氮化镓本身不含汞、铅等有害物质，无红外线和紫外线污染

Mars has no ozone layer to screen out the Sun's lethal radiation.

火星大气的构成中有95%是二氧化碳，而且，火星上没有能屏蔽太阳致命射线的臭氧层。

Mars has no ozone layer to screen out the Sun's lethal radiation.

有能屏蔽太阳致命射线的臭氧层。

Mars has no ozone layer to screen out the Sun's lethal radiation.

尽℃ 管火星上的山谷沟渠说明它曾经被流水蚀刻过，但如今那里已没有液态水了。

The system is made of shielding enclosures, pulse signal radiation device and its receiver.

该系统由屏蔽室、脉冲信号发射设备和测量接收设备等构成。

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。