现存的联邦铁路局轨道安全标准十分全面，对高达200英里/小时（约合322公里/小时）的速度指定了FRA1～9类这9种类型的轨道几何形状和欠高。
Existing FRA tracksafety standards are comprehensive and specify track geometry and cant deficiency for FRA Classes 1 through 9 at speeds up to 200 mph.
分析了公路几何设计与交通安全的关系，提出了公路几何设计中应该注意的安全问题及相关措施。
This paper analyzes the relationship between highway geometric design and traffic safety, and points out matters needing attention in design for safety and corresponding measures.
从而获得了滑移面几何控制参数与内部稳定性安全系数之间的函数关系。
Then the function relations among the geometrical controlling parameters of sliding surface and the internal stability safety factor are deduced.
近年来高型脚手架的安全成为建筑工地使用的焦点，其中最重要的一个问题就是脚手架的几何不变条件。
Recent years, the safety of high scaffold has become the focus of construction site, and one of the most important problems is the geometrical stability.
该文描述了代数几何与ecc的数学基础及椭圆曲线离散对数问题困难性，讨论了ECC在电子商务中的安全应用。
This paper describes the mathematics base of algebraic geometry and ECC. It also discusses the elliptic curve discrete logarithm problem (ECDLP) and the security applications of ECC on E-commerce.
蜂窝式密封新技术在减小汽封径向间隙的同时，借助于优化密封蜂窝室几何参数显著提高了汽轮机组的安全经济性。
Honeycomb sealing technology could make steam turbine unit operation safe and economic due to geometric parameters optimization of honeycomb seals when decreasing radial labyrinth clearance.
飞机驾驶舱人机几何适配性评价对于保障人机效能的充分发挥和飞行安全至关重要。
The geometry compatibility evaluation of aircraft cockpit plays key role in the efficiency of pilot-cockpit system and flight safety.
文章描述了一个3d几何模型的快速建立方式，它适合舰船的安全评估。
This paper describes a 3d geometric modeling method for warship safety assessment.
通过分别移动基底、地表水平面和位于基坑高度一半处的水平面上的三个几何控制点，寻找到边坡最危险滑移面并计算出对应的稳定性安全系数。
The slip surface is searched through moving the three geometric control points on the ground surface, the bottom of excavation and the surface at half of the height of the excavation, respectively.
本文主要阐述了几何线形对公路交通安全的影响，并针对公路与桥梁线形布置的几种实例进行分析探讨，仅供参考。
This article mainly expounds the geometric linear influence on road traffic safety, and for the linear layout of highway and bridge construction paper discusses several instances, for reference only.
并在安全系数为最小的条件下，讨论了滑动面几何参数之间以及它们与安全系数之间的关系。
Under the condition of the least factor of safety, the relations are discussed between the geometry parameters of slip surfaces and the factors of safety.
轨道几何状态检查是关系到铁路行车安全和旅客乘车舒适性的重要技术保障工作。
Inspecting the Geometry state of the track is an important work for the safety and comfort to the passengers.
安全性是公路线形几何设计的目标之一。
Safety is one of the goals of geometric design of road alignment.
运用圆弧条分法对尾矿库坝体稳定性进行了分析，建立了计算几何模型，计算出坝体安全性系数。
Using the circular arc Swedish method in tailing pond dam body stability analysis, the paper establishes the computation geometry model, calculates the dam body safety coefficient.
系统介绍了高速铣削加工淬硬模具时刀具材料及几何参数选择、刀具的损坏及检测、刀具与机床连接技术、刀具的安全性等相关刀具技术。
The choice of cutter materials and parameters, the damage and check of cutter, the connection technology of cutter and machine tool, cutter safety are included.
CFST拱桥施工安全控制主要从结构几何线形、内力和结构的稳定三方面进行分析控制。
The analysis of construction safety control of CFST arch is mainly from the three aspects which are geometric linear, internal force and the stability of structure.
这起事故的直接原因是未采用几何临界安全设备及工人的违规操作，而根本原因在于缺乏有效的技术管理。
The direct cause of the accident is the use of geometrically unsafe process equipment and personnel violation. However, the root cause is lack of efficient technical management.
利用几何学知识推导出了确定电力系统实用动态安全域（PDSR）临界超平面的截距法。
An intercept method to determine critical hyper-planes of practical dynamic security region (PDSR) of power system is developed by use of knowledge of geometry.
在同样的人员负荷、人员密度和人员初始期望速度情况下，空间几何尺寸对人员流动安全性有一定的影响。
It showed that space dimension could have a lot of influence on the safety evacuation performance of buildings based on the same crowd density load and the same initial expected velocity.
结果表明，按照所提出的方法，解决了在进行折叠结构设计时靠经验来判别其几何稳定性的局限性，保证了折叠结构设计的安全性和合理性。
The results show that the geometric stability criterions can resolve the limitation of experience design and ensure safety and rationality of folding structure design.
这起事故的直接原因是未采用几何临界安全设备及工人的违规操作，而根本原因在于缺乏有效的技术管理。
The direct cause of the accident is the use of geometrically unsafe process equipment and personnel violation. However, the root cause is lack of efficient technical management. Therefor…
主要技术要求是刀具的几何形状的正确性和加工工艺过程可靠性，文中主要介绍两种较易实施且安全可靠的加工方法。
The essential techniques is the validity of the tools shape and reliability of craft here, this paper tells two easy and sale & reliable methods to process.
曾几何时，天气是一个安全的谈论话题。
There was a time when talking about the weather was a safe topic of conversation.
依据储气井的材料和几何参数，建立了储气井系统模型，为储气井的安全评价提供依据。
According to the material and geometric parameters of gas storage wells, the system model is established;
第一册讨论船舶在其更加基础的理论上的几何学和测量方法，也包括安全问题，结构强度，下水，调配载重及稳定性。
Volume 1 discusses ship geometry and measurement in its more basic concepts, also covering safety issues, structural strength, flotation, trim and stability.
并在安全系数为最小的条件下，讨论了滑动面几何参数之间以及它们与安全系数之间的关系。
Under the condition of the least factor of safety, the relations are discussed between the geometry parameters of slip surfaces...
并在安全系数为最小的条件下，讨论了滑动面几何参数之间以及它们与安全系数之间的关系。
Under the condition of the least factor of safety, the relations are discussed between the geometry parameters of slip sur...
对某轿车的侧面安全气囊泄气面积、气体质量流量、几何尺寸等参数进行了优化设计。
The leakage area, inflator gas flow rate and dimension of side airbag on a passenger car were optimized.
根据安全阀的实际结构和参数，利用三维建模软件Proe，结合计算数学模型的可行性，建立了安全阀流道的三维几何模型。
The 3-d geometrical model of relief valve was built by using PROE software, according to its actual structure and parameters as well as feasibility of computational mathematical model.
根据安全阀的实际结构和参数，利用三维建模软件Proe，结合计算数学模型的可行性，建立了安全阀流道的三维几何模型。
The 3-d geometrical model of relief valve was built by using PROE software, according to its actual structure and parameters as well as feasibility of computational mathematical model.
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