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Buried depth is one of the important factors to be considered in pipeline design. There are different requirements to different areas. In the region of rock collapse, pipeline is easily damaged by rockfall impact.

管道埋深是管道设计时需考虑的重要因素之一，不同地域有不同的要求，在崩塌落石地区，由于落石对管道的冲击作用，管道容易发生破坏。

The design of aircraft hydraulic system emphasizes particularly on choice of hydraulic component, calculation of fluid self-excitation resonance, avoidance of coupling of pump's ripple frequency and natural frequency of pipeline, and layout of pipeline system, but the design of aircraft structure emphasizes particularly on calculation of stress and intensity.

飞机液压系统的设计侧重于液压元件的选择、流体自激谐振的计算、避免液压泵脉动频率与管道固有频率的耦合及管路系统的布局，而飞机结构设计侧重于应力和强度的计算。

However, the liquid water exists on the inner wall and the pipeline sinkage before the line comes on stream will have a humidification function to the natural gas, because of which the dew point temperature of natural gas can not meet the requirement of gas transmission at the early stage of the pipeline commissioning.

但输气管道投产前存在于管道内壁和管道低洼处的液态水对天然气有增湿作用，导致天然气露点在输气管道投产初期不能满足管输要求。

According to the existing toilet bowl pipeline shape produced by some enterprises,the effect on the pipeline siphonage which is caused by the alterations of hydraulic packing control point was investigated with the hydrodynamics calculation in this paper.

该文从企业现有的坐便器管道形状入手，首先应用水动力学知识计算水封控制点位置的变化对管道虹吸性能的影响，然后基于计算结果提出更优位置的假设，并依据试验确定其合理的变化范围，最后通过CFD方法模拟改进前后管道中的虹吸速度和虹吸压力，结果表明管道虹吸性能得到了优化。

In this paper, the failure problem of the pipeline systems on the platform is researched by spot test, monitor, and numerical simulation. It is pointed out the major criterion of the failure mode and this kind of failure mode is inevitable. In order to improve the condition the pipeline ice-resistant rank should be enhanced.

本文通过现场检测、监测和数值模拟等手段对海洋平台上部管线系统的失效问题进行研究，给出该失效模式的主要判据，并且指出该种失效模式是无法避免的，应提高管线的抗振设防等级。

In general, the key measure to pipeline recovering is grouting, which means grouting in subjacent bed to raising the pipeline.

以北京地铁黄庄站下穿热力管道抬升注浆工程为研究对象，利用三维有限差分数值方法分析了新建车站开挖引起超大管道的变形特征。

The process design of the pipeline is critical to subsea pipeline project.

摘要管道的工艺设计是海底管道工程的关键，其作用和目的是根据实际生产状况，选择合理经济的输送参数和材料，包括管道的管径、压降、温降、保温形式及管道的材质。

The Anti-Earthquake Design Method of Subsea Pipeline and the Stability Study of Subsea Pipeline with Imperfections.

海底输油管线的抗震设计方法与含缺陷管道的稳定性研究。北京：北京大学力学与工程科学系，2004。

To analyze the reliability of oil pipeline ,the traditional methods of the evaluation for reliability ,based on the theory of reliability and supposal of failure rate ,regard the pipeline as a system of series connection or parallel connection .

对长输管道可靠性进行评估的传统方法是，将管道结构视为一个串联或并联系统，运用可靠性的理论概念和各种失效概率假设，以故障率的统计资料为计算依据来进行可靠度的计算分析，可靠度也采用故障率等参数来表达。

This is the Zhongyuan Oilfield in recent years, the maximum span of the construction of gas pipeline project, a pipeline project, but also that the first swing truss bridge tower.

这是中原油田近年来承建输气管道工程跨径最大的一项管道铺设项目，同时也是国内第一个摇摆塔式桁架桥。

My suggestion is that we should tell him.

我的建议是我们应该告诉他。

The practice of human rights protection in the state of emergency by Inter-American human rights protection organizations is in accordance with Article 27 of The American Convention on Human Rights.

美洲人权机关对紧急状态下人权的保障，主要是围绕着《美洲人权公约》第27条所确立的标准而进行的实践。