Through computation of examples , researches distinction between single - queuing model and multi - queuing model , provides the theory basis for passenger organization and the area design in the check - in hall and promotes queuing theory in airport terminals design 通过实例计算，研究单路排队和多路排队方式的区别，为航站楼值机大厅的旅客组织和面积设计提供理论依据，推广排队论在航站楼设计中的应用。
Abstract : the working reliability of series and paralled and series - parallel pipe which has one line 、 two or three branch lines is analysed with probability in accordance with the pipe valves in power station . full and accurate data from the analyses are showed . they can be used in disigns and reforms of the pipe lines of power station 文摘:考虑电厂管路阀门的实际需要，用概率方法分析了单路、双路和三路并联或串并联管路的运行可靠度，并提供了详实数据，可供电厂设计改造管路阀门时参考。
The algorithm study is in detail that one channel of video - stream is recompressed by mpeg - 2 standard so that its bit - rate will be changed lower . then , multi - date streams will be processed by the technology of statistical remultiplex . the dynamic signals of every single data - stream " output can drive the values of bit - rate of the corresponding single data - stream 本次算法研究具体地说就是按照mpeg - 2的标准对单路mpeg - 2视频流再次压缩，将其码率变的更低，并且提出对多路码流进行统计复用，根据单路码流的输出动态信息对码流进行动态的调整的框架。
The results of the test demonstrated that the system has a good performance in the linearity , dynamic scope , isolation , coherence of the amplitude . the group delay of the upmixers is 2ns , which is better than other domestic manufactures . because the inconsistency between the isolation and the phase coherence , and the error of the test method , we haven ’ t gotten the good performance of the phase coherence . the next work is improving the restrain of the filter to the lo signal and the phase test methods 在单路发射通道上,群时延达到了2ns ,优于国内很多产品。三路通道之间的相位一致性由于测试方法的误差以及隔离度指标的牵引作用,我们不能调试达到非常好的在相位一致性指标,再下一轮的工作中必须提高滤波器对本振信号的抑制度,改进相位测试方法以达到指标要求。
Up to now , although the fiber optical transmission network " s own monitor and management system are good , without other communication means , we can not judge what reason cause the abort of the fiber optical transmission network which has only one communication route by using the technique and means in existence 目前，虽然光纤通信系统设备本身的监控管理比较完善，但当单路由光纤通信系统全局阻断后，如果没有其他通信手段，远端站到底是发生光端机故障、电源故障，还是光缆中断造成的全局的阻断，用现有的技术和手段无法判别。
Laser facilities have been built with the output energy of about a hundred joules at the beginning up to a few mega - joules now and beamline numbers have increased to hundreds . for such facilities , each beamline contains numerous optical elements with enlarged apertures of up to a few tens centimeters and the optical paths extend as long as hundreds of meters 激光装置的输出能量从初期的百焦耳级发展到兆焦耳级，其结构规模从小型单路输出发展到上百路输出，光学元件数量大幅度增加，光学元件口径增大到数十厘米，光传输距离也从数十米增加到百米。
This paper first introduces the aspects of network performance research based on traffic measurement , modeling and analysis and its state - of - the - art , secondly summarizes then the concept , models and analysis tools of self - similar traffic , and analyzes scaling behavior of packet loss with self - similar traffic input by wavelets method , thirdly introduces hidden markov model and its applications on network performance research , and then explores the cross - traffic inferring technology and the disadvantages of existing methods . after that the paper develops a new method for cross - traffic inferring based on delay jitter measurement , proves its correctness by experiments , and applies it to self - similar traffic background and real traffic trace to investigate its availability , 本文首先阐述了基于流量测量与分析的网络性能研究方向和研究现状,而后介绍了自相似流量的基本概念和相关建模和分析技术,并采用小波分析的方法分析了单路复用网络模型在自相似流量下丢包的尺度特性,其次介绍了隐马尔可夫模型以及其在网络性能研究中的应用,最后在此基础上考察了网络流量推断技术,分析了现有的方法的不足之处,提出了一种新的基于探测流延迟抖动测量的流量推断测量技术,通过实验证明了该方法的正确性,然后将其应用到自相似流量背景下考察了其对自相似性的推断刻画能力,并且通过实际流量检验了其有效性。
Wide plus ds series single - channel wind pressure measure transmitter employ import high precision and stability chip , and adopts surface treatment technology of special aluminum alloy and stress isolated technology in the sensor transfer differential pressure signal into ma dc standard signal by precise temperature compensation and amplification treatment Wideplus - ds系列单路风压测量变送器是选用进口高精度高稳定性芯片，并采用特殊铝合金表面处理技术和传感器应力隔离技术，经精密温度补偿及放大处理，将差压信号转换成420 ma dc标准信号。
