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gsm
相关语句
  全球数字移动电话系统
     On Application of GSM/GPS to Public Transportation
     全球数字移动电话系统结合GPS运用在公交系统的探讨
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  “gsm”译为未确定词的双语例句
     SOC Design for GSM Handset Baseband Processing
     GSM手机基带芯片SOC设计
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     Analysis Based on GSM for System Environment
     基于GSM的系统环境分析
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     GSM BEAMS AND SURFACE ROUGHNESS
     GSM光束与表面粗糙度
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     Anallysis and Comparison of Signal Design Schemes for GSM and Qualcomm CDMA Systems
     GSM和QUALCOMM CDMA系统信号设计方案的分析和比较
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     The Base Sation Subsystem of GSM System
     GSM系统的基站分系统
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  相似匹配句对
     Measurement Requirements of GSM
     GSM的测试要求
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     GSM-embedded PLC
     整合GSM模块的PLC及应用
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  gsm
Only CDMA2000 1X EV-DO or enhanced data rate for GSM evolution (EDGE), which adopts the Time Division Multiple Access (TDMA) mode, can provide the high-speed data rate for a wireless access.
      
A new tensor ABCD law for treating the propagation of partially coherent Gaussian-Schell model (GSM) beams through a paraxial optical system is derived.
      
The focusing, spectral shift and fractional Fourier transform of the GSM beam are investigated by using the tensor method.
      
Mean recoveries of SPE were low for 2-methylisoborneol (2-MIB) and geosmin (GSM) with values below 50%.
      
For LLE, the recoveries were satisfyingly above 50% for 2-MIB and 80% for GSM.
      
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Four factors which affect the position of bulge of the plasmasphere are analysed. They are: (1) the existence of X-component (in the GSM system) of the large-scale magnetoshe-ric convection electric field, (2) the asymmetry of Ey-component of this field on dayside and on nightside with respect to the dawn-dusk meridian, (3) the offset auroral oval belt, and (4) the sudden change in Ey-component. The discussion places stress on the possibility of existence of the Ex-component in quiet and disturbed conditions....

Four factors which affect the position of bulge of the plasmasphere are analysed. They are: (1) the existence of X-component (in the GSM system) of the large-scale magnetoshe-ric convection electric field, (2) the asymmetry of Ey-component of this field on dayside and on nightside with respect to the dawn-dusk meridian, (3) the offset auroral oval belt, and (4) the sudden change in Ey-component. The discussion places stress on the possibility of existence of the Ex-component in quiet and disturbed conditions. The Volland's model of global electric field is appreciated and further improvements of it are proposed to overcome some of its drawbacks.

本文分析了四种影响等离子体层顶突起位置的因素:(1)对流电场E_x分量的存在;(2)白天和夜间的E_y分量的不对称性;(3)偏心极光椭圆带;(4)E_y分量的突然变化。文章着重讨论了在平静时和在磁活动性增强时正E_x分量存在的可能性。文章肯定了Volland电场模型,但指出它存在某些缺点,建议做进一步改进。

Now the service honeycomb mobile telephone systems of many countries in the world are analog mobile telephone systems of the first generation,such as NMT of four countries in North Europe,AMPS of America,C network of F.R.G, TACS of England,NAMTS of Japan.TACS and Annekson system of Beijing, Shanghai and Guangzhou in our country are also analog mobile telephonc systems of the first generation.In order to meet major user and set united technical standard system, many countries in Europe has proposed a number of...

Now the service honeycomb mobile telephone systems of many countries in the world are analog mobile telephone systems of the first generation,such as NMT of four countries in North Europe,AMPS of America,C network of F.R.G, TACS of England,NAMTS of Japan.TACS and Annekson system of Beijing, Shanghai and Guangzhou in our country are also analog mobile telephonc systems of the first generation.In order to meet major user and set united technical standard system, many countries in Europe has proposed a number of system versions with the corperation of GSM,That is experimental system versions of the secondary generation digital honeycomb mobile telephone systems.In the paper several systems,which emphasise upon CD900 and S900D,are described comprehensively.Analysis and valuation are made from the view of multipe address technigue,channel coding, speech coding,modulation technique as well as economy.

目前在世界上许多国家运营的蜂窝式移动电话系统如北欧四国的 NMT、美国的AMPS、联邦德图的 C 网、英国的 TACS、日本的 NAMTS,我国在北京、上海和广州运营的 TACS 和爱立克森系统都属第一代模拟式移动电话系统。为了满足更多用户的要求,建立符合统一技术标准的系统,欧州许多国家在移动通信专业组(GSM)组织协调下,提出了多种系统方案,即第二代数字蜂窝式移动电话系统试验系统方案。本文对这几种系统,重点对 CD900、S900D,作了全面介绍。并从多址技术、信道编码、语音编码、调制技术以及经济性等方面进行了分析和评估。

The mechanisms of hepatotoxicity of phosphorus was studied on different groups of rats intoxicated by phosphorus by either single or multiple doses respectively, Results showed that phosphorus was metabolized by the liver microsomal mixed-function oxidases. Induction of MFO promoted its liver toxic effect. In addition, the liver GSM and related emenzymes participated in detoxification of phosphorus. Exhaustion of GSH and the enzymes was found to be related to be lipid peroxidation or disturbance of hepatocellar...

The mechanisms of hepatotoxicity of phosphorus was studied on different groups of rats intoxicated by phosphorus by either single or multiple doses respectively, Results showed that phosphorus was metabolized by the liver microsomal mixed-function oxidases. Induction of MFO promoted its liver toxic effect. In addition, the liver GSM and related emenzymes participated in detoxification of phosphorus. Exhaustion of GSH and the enzymes was found to be related to be lipid peroxidation or disturbance of hepatocellar Ca~(2+) homeostasis of liver cells. The results indicated that lipid peroxidation was one of the important mechanisms of chemical liver damage by phosphorus.

本研究表明,肝微粒体混合功能氧化酶参与了黄磷在体内的活化代谢,促进了肝毒作用。肝谷胱甘肽及其酶系参与了黄磷的解毒代谢,当其耗损或失代偿时,可为脂质过氧化或钙泵障碍提供发生条件,所得数据较充分证明:脂质过氧化是黄磷中毒性肝损害十分重要的机理,但不能认为是唯一的机理,它与钙泵障碍的相互关系,值得进一步研究。电镜及组化的研究发现,线粒体和粗面内质网是黄磷的靶细胞器,其功能和结构改变,是各种病理改变的基础。

 
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