application and further development of the ngn soft switch technique are discussed, as well as relevant problems.

1、

virtual private networks ( vpn), which is built on the basis of ip technology, is rapidly becoming the basis of networks service.

建立在IP技术基础之上的VPN（虚拟专网）正快速成为新一代网络服务的基础，众多的服务供应商都纷纷推出了基于自身VPN传输网的各类增值服务。

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2、

ctt net is a high speed broadband ip network with concentrated condition and unified management, which can provide users with internet access, mpls-vpn and other functions.

中国铁通互联网是实行统一管理、集中调度的高速宽带IP网络，可向用户提供互联网接入、多协议标签交换虚拟专网等业务。

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3、

the author is responsible for physical layer dsp development and the simulation and implementation of corresponding algorithms for the wireless communication system during my internship period.

本文作者在实习期间主要负责，无线专网通信系统的物理层的DSP开发，包括驱动开发和相应算法的仿真与实现。

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4、

this paper presented the virtual telephony network, p_vpn. the architecture of p_vpn includes management layer, transmission layer and control plane.

文章提出了电话虚拟专网P VPN安全模型，其体系包括管理层、传输层和控制面。

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5、

gigabit exploration storage personal network nas system's foundation and application

千兆勘探存储专网NAS系统的建立和应用

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6、

traffic observation system based on vpn

基于虚拟专网（VPN）的交通观测系统研究

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7、

vpn virtual private network is a private special network built in public net of internet.

VPN虚拟专网是在互联网公用网络上建立私有的专用网络。

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8、

the proprietary network of electronic government based on atm network is specifically designed for government agencies.

基于ATM网络构建的电子政务专网，是专门为政府机构设计的。

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9、

application of ip speech in business enterprise

企业专网中IP语音的应用

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10、

reducing toll fee with the ip technology on private network

应用IP技术降低专网长途通信费用

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11、

virtual private network for virtual enterprise information systems

虚拟企业信息系统的虚拟专网VPN模型

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12、

objective : to study the sampling and determinating method of ethylene dibromide among the workplace air.

目的: 探讨工作场所空气中1,2-二溴乙烷的采样和测定方法.

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13、

objective: to a method of bacterial endotoxin test for fluconazole and glucose injection using limulus a-gent.

目的: 建立用鲎试剂检查氟康唑葡萄糖注射液细菌内毒素的方法.

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14、

objective to develop a method for determining the contents of fluconazole in fluconazole and glucose injection.

目的测定氟康唑葡萄糖注射液中氟康唑的含量.

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15、

that taurine in milk powder was determined by hplc using pre-column derivation by 2,4-dinitrofluorobenzene ( dnfb ) .

建立了用2,4二硝基氟苯作为柱前衍生试剂,采用高效液相色谱仪,紫外检测器成功检测出乳粉中牛磺酸含量的方法.

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16、

conclusions the th 1 acd is induced by dnfb, and the th 2 acd is induced by fitc.

异硫氰酸荧光素组淋巴结细胞分泌白介素4的量是二硝基氟苯组的约2倍.

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17、

il-2 was mainly expressed in the dnfb treated ears , and il-4 in the fitc treated ears.

二硝基氟苯组以白介素 2表达为主;异硫氰酸荧光素组以白介素4表达为主.

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18、

methods: a tetrazolium reaction spectrophotometry method was used.

方法: 采用四氮唑反应分光光度法.

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19、

different combustion form influence the nox emission.

对比不同构型对氮氧化物生成的影响.

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20、

in this paper the effects of some important experimental parameters on the selenium sensitivity were discussed.

摘要本文讨论了硼氢化钠加入量、石英管内原子化温度和毛细管阻尼器等重要实验参数对于硒测量灵敏度的影响.

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