查询词典 pipeline

The construction of common—use tunnel and common—use cable tunnel could protect the road,improve traffic conditions and urban landscape,and promote the maintenance and efficient use of public pipeline.

共同沟和电线共同沟的建设保护了道路，改善了交通、环境和城市景观，促进了公共事业管道的维护和高效利用。

Cadetship program: to build early talent pipeline for multiple functions such as sourcing, quality, product design, and manufacturing through a strategic, systematic approach.

快速成长计划：项目持续1.5 年，通过两个不同地点的工作任务来培养供应链，质量，产品设计和制造工艺领域的工程师或未来的领导。

Upscale brand Cambria expanded rapidly with 12 hotels in operation and a pipeline of 61 properties.

高端品牌 Cambria增长迅速，12家新开的酒店已在营业当中，另有61家在紧锣密鼓地筹备中。

Saint-Gobain Canalization, the pipe network Branch of the Saint-Gobain Group, is the Worlds' leading manufacturer and exporter of ductile iron pipeline systems.

圣戈班穆松桥成立于1856年，隶属法国圣戈班集团。

There is new interest in Nabucco, a pipeline to bring gas from Central Asia and the Caspian to Europe via Turkey.

新的目标是Nabucco这一经由土耳其的从中亚和里海到欧洲的燃气管道。

Because the temperature along the pipeline is not a constant, it changes the velocity of the negative-pressure-wave; the Romberg algorithm of numeric integral and the searching for algorithm are emloyed to locate the leakage.Multi-scale decomposition and reconstruction of wavelet transform is applied to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of Δt in location formula, and the location accuracy is improved.

利用小波变换的多分辨分析和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了消噪处理；并利用小波变换技术对信号奇异点快速、准确的识别能力，对经过消噪处理后的负压波信号进行了奇异点捕捉，准确确定了定位公式中上、下游站点采集到的负压波奇异点的时间差△t，从而提高了定位的精度。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

Only 6 sets of Metso valves in need of repair, 41 units on the check valve in the pipeline.

在57台美卓ESD阀门中，有15台进行了维修，其中包括7台"最关键"的阀门。

The chironomid larvaes enter the watersupply system through transmission pipeline.

水源中的红虫随输送管道进入给水系统，其在给水处理系统中繁殖并进入管网，对水质感官指标造成了重要影响。

This study examined the impact of the pH and ratio of chlorine to ammonia-nitrogen(Cl2:N ratio) on the formation of trihalomethanes and haloacetic acids(HAA5)in water system with chloramine,under two-day simulated pipeline system.

本试验模拟管网，取典型的停留时间2d，考察了氯胺消毒时，pH和Cl2：N对管网中的消毒副产物浓度的影响。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。