管道

On the basis of common theory about the probability-limited state for the structure, the author summarized the cracking law of this penstock and put forward a new definition of particular crack width to judge the structures limited state. This formula is simple and practicable, and it can be used for reference in engineering design.

文章从混凝土裂缝的基本理论出发，采用合理的计算模式，并结合压力管道结构的特殊性，推导出了在内水压力等因素的作用下钢衬钢筋混凝土压力管道最大裂缝宽度的计算公式，并和有限元软件ANSYS分析的结果进行了对比，两者的吻合程度较好。

Primary pilot survey of long distance pipeline can not depend upon the national pilot points which are severely damaged, and therefore will result in large work quantity and cost, and limted progress if using the conventional pilot network which is made up of triangular chains or net.

目前国家测量控制点已被严重破坏，不能满足长输管道首级控制测量的要求(每20～30km与国家点联测一次)。常规控制网是以三角形构成的锁、网组成，用这种方案进行长输管道测量的首级控制时，工作量大，费用高，且控制网的推进速度慢。

AYDOGDU Schweisstechnik leads high-quality services and products to Piping construction, Construction of pipage system in addition to Pipework system construction, Plant construction and to Inert gas welding.

该企业竭诚为贵公司介绍关于焊接、管道结构、管道安装、焊接操作以及工业设备制造和设备制造费用信息，请拨打

Two or more Series 709 devices may be piped in parallel to serve a large supply pipe main.

两个或以上的系列709装置能够以并联的方式安装在管道上，用于服务于更大的主供应管道。

Tell the pipelayer that he has to be careful with the gas pipe.

告诉管道安装工煤气管道要小心。

The main series of product as fellows: DaiFeng brand hydraulic pipelayer(DGY10-DGY100), QUY12、QUY16 tracked crane, GPY300 hydraulic backfiller, GYD80 pipeline mobile power station and WLY80 hydraulic wheeled excavator.

主要产品有："岱峰"牌DGY10－100型全液压履带吊管机、QUY12、QUY16型履带式起重机、GPY300型管道回填机、GYD80型管道移动电站和WLY80型轮式挖掘机。

Therefore, it is necessary to carefully work out the pipe interface to ensure the quality of pipeline construction.

因此，要认真地做好管道的接口工作，保证管道连接的施工质量。

If your products are pipes, you are trying to speak directly to those who are in need of pipes.

如果你的产品是管道，你想讲给那些需要的管道。

The system, which cost around ￡80,000 for all the pipework and ducting as well as the actual delivery system, is expected to pay for itself within two years because of the savings in manpower.

该系统，该系统耗资约8.0万英镑，所有管道和管道，以及为实际交付系统，预计将支付本身的两年内，因为所节省的人力。

The main focus is on the competencies that are common to the plumbing and piping trades....

主要的重点是能力，这些都是常见的管道和管道行业。。。。

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。