2) jet inducting system
喷流导引系统
1.
This paper presents the application of jet inducting system in the ventilating design of undergroundgarage,focusing in its principles, advantages and design mainpoints.
主要介绍了喷流导引系统在地下车库通风工程设计中的应用,并着重介绍了该系统的原理、优点及设计要点。
3) diversion drainage system
引流排水系统
4) DC traction power supply system
直流牵引系统
1.
DC traction power supply system is a special and important part in urban rail transit.
阐述直流牵引供电系统是城市轨道交通供电系统中一个特殊重要的部分,直流牵引系统监控自动化是整个供电系统自动化工程实施的核心。
2.
Safe and reliable operation of DC traction power supply system are the basis of whole urban railway transit system, it is very important to do research work on DC traction power supply system fault analysis, protection and relative problems.
随着我国经济的发展,城市建设规模的不断扩大,许多大中城市轨道交通的规划和建设已提上日程,直流牵引系统的安全可靠运行是整个城市轨道交通安全畅通运行的基础。
5) crowd piloting system
客流引导系统
6) DC traction power supply system
直流牵引供电系统
1.
Coordination of line detection with automatic re-closing in DC traction power supply systems
直流牵引供电系统线路检测与自动重合闸的配合
2.
After analyzing several kinds of protection for feeder line in subway DC traction power supply system,it is pointed out in the paper that the phenomena of refusing action and error action can not be avoided with existing protection which can not protect the whole feeder line.
分析了地铁直流牵引供电系统中几种常用的馈线保护类型,发现现有的保护方法很难避免跳闸保护拒动或误动现象的发生,并且不能保护馈线的全长。
3.
The paper gives the examples of failures caused by rail potential and negative return current occurred in operation of Guangzhou subway, illustrates the specialty and importance of rail potential and negative return current in DC traction power supply system after the analysis of causes in detail and proposes some inspection and handling measures to typical failures in operation.
列举了广州地铁在运行中发生的几起与钢轨电位及负回流相关的故障,通过详细的原因分析,说明在直流牵引供电系统中钢轨电位和负回流的特殊性和重要性,并提出了在运行中针对几起典型故障的检查和处理措施。
补充资料：部分型肺静脉畸形引流
部分型肺静脉畸形引流
partial abnormal pulmonary venous drainage
是指两个肺的一部分肺静脉与右心室和/或上腔静脉相通连。常见的病变是右肺的一支静脉或全部静脉发生畸形引流。多数部分性肺静脉畸形引流的患者合并房间隔缺损。病理生理改变与临术表现与房间隔缺损较大者相似，两者的鉴别诊断有时几乎不可能。下列各点有助于诊断：①有些病例X线检查可见畸形肺静脉阴影；②心血管造影，造影剂在右心房因来自畸形肺静脉的血流冲击而产生残缺影像；③右心导管不经过左心房而由右心房进入肺静脉。治疗需手术将畸形引流的肺静脉改道，回流到左心房。手术方法随畸形引流的部位而不同。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条