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1)  limit value for traffic safety
行车安全限值
1.
Due to the speed-up of Chinese railways, the lateral vibration amplitudes of some bridges surpass the corresponding limit value for traffic safety determined by the Code for Rating Existing Railway Bridges (abbreviated to the Code herein).
提速以来,部分桥梁横向振幅大大超过《铁路桥梁检定规范》规定的行车安全限值,采取列车限速过桥或桥梁加固措施,制约了提速战略的实施。
2)  Safety limit
安全限值
1.
Based on the calculation results and GB5599-85,the safety limit of track torsion irregularity is proposed, At last , the recommendation for urgent repair standard of track torsion irregularity in Rules of Maintenance of Way is assessed.
本文用车辆-轨道系统耦合动力学的理论,分析了轨道扭曲不平顺的幅值对车辆动力学性能的影响,并以《铁道车辆动力学性能评定办法和试验鉴定规范》中规定的第二限度(安全限度)为评定准则,提出了轨道扭曲不平顺的安全限值,并对其临时补修标准作出了评价。
3)  Train operation safety
行车安全
1.
Research on simulation of the train operation safety and real-time control mode based on closed-loop control on Shanghai-Nanjing line;
基于闭环控制的沪宁线行车安全实时控制模式的研究
2.
Due to the limited design speed of the existing bridges at 120 km/h and the strong vibration of the freight train with Zhuan 8A bogies installed at the speed reaching 78 km/h, some problems appear after speed increase of the railway threatening the train operation safety on the bridges.
铁路提速后,由于既有桥梁设计时速仅为120km,同时因为装有转8A转向架的货物列车在速度达到78km/h时出现强烈的摆振,因此出现了威胁桥梁行车安全的一些问题。
3.
The definition of train operation safety guarantee system and the difference between the above system and train operation safety system are discussed in this paper.
讨论了铁路行车安全保障系统的定义及其与行车安全系统的区别,并借助系统分析方法的思路较全面地刻划了铁路行车安全保障系统的有序结构和它所包含的相互关联的内在本质。
4)  driving safety
行车安全
1.
Measurement of anti-slide performance of tunnel road surface and its effect on driving safety;
隧道路面抗滑性能测定及其对行车安全影响分析
2.
Attention assignment characteristic of driver and its influences on driving safety
驾驶员注意分配特性及其对行车安全的影响
3.
To reduce the effect of trucks on driving safety,the influence of truck traffic on highway operating safety was studied on the basis of considering truck driving theory,traffic environment and drivers characteristics.
为减少货车对行车安全的影响,在充分考虑货车行驶理论、交通环境和驾驶员特征的基础上,就载重货车交通对高速公路运营安全的影响进行研究。
5)  operation safety
行车安全
1.
By the thought of system analysis,this paper puts forward entirely the hiberarchy and their relation and function of the system,at the same time,it illustrates the inbeing and its model of the operation safety ensuring system.
借助系统分析方法的思路,全面勾画出系统的层次结构以及各层间的相互联系与功能,阐明行车安全保障体系的本质及其运作模式,可供在实际应用结合现场的实际情况,构建形式各异、符合实际的行车安全保障体系,以确保铁路行车安全。
2.
The supervision and control system of train operation safety is acomprehensive system that ensures the safety of railway operation.
铁路行车安全综合监控系统是确保铁路行车安全的综合系统。
3.
Based on the actual situation of China railway transportation, fromaspect of man-machine-environment and with systematic and scientificresearch method, the paper suggests to build up a railway operation safetyensuring system constituted of man safety, equipment safety, environmentsafety alarming and safety emergency rescue system, and to realize resourcesharing by network.
根据我国铁路运输的实际情况,从“人-机-环境”的角度,运用系统科学的研究方法,提出应由行车人员安全保障系统、设施设备安全保障系统、环境安全报警保障系统和行车安全应急救援系统构成一个统一的铁路行车安全保障体系,通过网络实现资源共享,为铁路行车安全保障提供了构思框架,并对有关问题提出了深入研究的建议。
6)  traffic safety
行车安全
1.
Human is the main factor that effects highway traffic safety,especially under the abominable nature environment.
讨论了从事沙区公路运输的人员在沙漠特殊环境下身心特性的变化以及对行车安全带来的后果 ,并就保障沙区公路交通安全问题进行了初步探
2.
The results showed that the shapes of rut were different,and the shape of rut affects traffic safety.
从车辆行驶安全性的角度出发,采用车辙最大深度、车辙宽度、车辙最大可能积水面积、车辙辙槽的平均曲率半径等多个指标描述车辙的特征,揭示了车辙与行车安全性之间的关系,为今后确定更加合理的车辙评价指标打下基础。
3.
It is of great importance to appropriately selection expressway alignment standards, because it facilitates not only traffic safety but also embankment stability and environment scene.
高速公路线形指标的合理选择不但有利于行车安全,也有利于路基工程稳定和环境景观, 坚持“以人为本”、“安全至上”、“环保优先”的原则,更新设计理念,搞好山区高速公路的线形设计,使公路路基与地形地貌相吻合,避免高填深挖工程,为行车安全和环境保护做出贡献。
补充资料:限流安全切断阀
分子式:
CAS号:

性质:高纯气体系统用语,当流量超过设定值时可自动切断流量。切断阀通常安装在气源出口与减压器之间。它对流过设定孔的压力降敏感,当达到设定压力差限时,阀门关闭。如果将启动开关打开,使活塞上下压力平衡,则又重新开始工作。此类阀的入口压力1~21MPa,工作压差0.42MPa,稳定性/重复性±10%,操作温度-40~90℃。适用材料是阀体为316不锈钢,阀座为聚四氟乙烯和氟橡胶,弹簧为不锈钢。  限速酶  rate-limiting enzyme  物质代谢是代谢物“S”在多酶体系的逐步催化下,经过一系列的中间过程,最后生成终产物“P”:S→I1→I2→I3→→→In→PI1,I2,…为中间产物。反应系统中具有最小速度常数的反应步骤即为反应速度最慢的步骤,称为限速反应。催化限速反应的酶称为限速酶,它们往往处于代谢途径的关键地位。改变限速酶活性不仅影响整个代谢反应的总速度,还可改变代谢的方向。例如,磷酸果糖磷酸激酶是糖酵解途径的限速酶,细胞内ATP/AMP比值增加可抑制此酶活性,使酵解速度减慢,同时由于激活果糖1,6-二磷酸酶而使代谢转向糖异生过程。

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