They provide a simple cost effective way to duplex flow equipment for applications where continuous flow must be maintained, with no flow interruption for down-side servicing.
他们使用在需要持续流动的应用中，提供了一种简便，低成本的方法，不会影响运行过程。
Objective:To evaluate and analyze the superiority and shortcomings of color duplex flow imaging (CDFI) for DVT diagnosis using date of our hospital in the recent 10 years retrospectively.
目的回顾性分析总结该院10年来用彩色多普勒超声诊断DVT的优势、不足之处和应注意的问题。
Methods Portal venous blood flow, hepatic arterial blood flow and resistance index(RI) were determined by duplex Doppler sonography in 56 patients subjected to liver transplantation.
方法应用彩色多普勒超声对56例肝移植患者术前及术后移植肝门静脉、肝动脉血流及肝动脉阻力系数（RI）进行监测。
This paper introduces a real time multitask duplex system realized by cluster, and describes the basic flow, methods to decide machine fault, dual buffers technology to make switching.
在介绍实时高可靠应用系统传统处理模式的基础上，描述了一个利用集群技术实现的实时多任务双工系统所采用的基本工作流程、故障的判定方法和双缓冲切换技术。
This paper introduces a real time multitask duplex system realized by cluster, and describes the basic flow, methods to decide machine fault, dual buffers technology to make switching.
在介绍实时高可靠应用系统传统处理模式的基础上，描述了一个利用集群技术实现的实时多任务双工系统所采用的基本工作流程、故障的判定方法和双缓冲切换技术。
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