管道中的

When water is confined in tubes of very small bore, the forces of cohesion (the attraction between water molecules) are so great that the strength of a column of water compares with the strength of a steel wire of the same diameter.

当水被限制在内径很小的管道中时，内聚压力(水分子之间的相互吸引力)是如此之大以致一支水柱的强度相当于一根直径相同的钢丝的强度。

When water is confined in tubes of very small bore, the forces of cohestion (the attraction between water molecules) arc so great that the strength of a column of water compares with the strength of a steel wire of the same diameter.

当水在被限在非常小的管道中时，粘力是如此的大以至于水柱的水量可以和相同直径的钢丝的力量相比。

In their work, carried out at the FOM Institute for Atomic and Molecular Physics in The Netherlands, Catchpole and Polman showed that light capture for long-wavelength light could be improved by a factor of more than ten.

据水利部节水灌溉示范基地负责人介绍，这种纳米塑料管材具有质优价廉的特点，在新疆、内蒙古、宁夏等一些地区的节水灌溉和输水管道中得到应用，受到了专家和用户的欢迎，取得了很好的效果。

Most of these depend heavily on Russian gas and oil. These are typically costly and come from clapped-out fields along ageing pipelines through unreliable transit countries, with unwelcome political conditions attached.

这些国家中的很大一部分及其依赖于俄国燃气和石油，又昂贵又是从破旧地区沿着老化的石油管道输送而来，还要经过靠不住的传送国家并接受它们附加的恼人的政治条件。

Based on analyzing and comparison of the several kings of theoretical formula and analyzing the composition and influence factor, this paper improves a common formula used in calculating jacking force in pipe jacking.

本文针对当前非开挖技术基础理论研究滞后于工程实践的现实，对顶管的推力理论、水平定向钻进的管道回拖力及其水平钻进过程中的孔壁失稳机理等问题进行了研究。

The principle, process, influence factors, advantages and disadvantages of dry air exsiccation in flowing gas evaporation method and the preparation of dry air are introduced mainly.

综述了天然气管道常用的干燥剂法、流动气体蒸发法和真空干燥法的原理、优缺点、影响因素，对流动气体蒸发法中的干空气干燥法的原理、工艺、影响因素、优缺点、干空气的制取进行了重点介绍。

In order to design a grease stain thickness non-destructive detector for petroleum pipeline, the decay rate of neutron and γ-ray in different petroleum pipeline of grease stain thickness were calculated with Monte-Carlo method. The response relationship between particle (neutron or γ) and grease stain thickness was found.

为设计1种基于射线透射原理的石油输送管道油垢厚度无损检测仪，利用蒙特卡罗方法分别计算中子、γ射线在不同油垢厚度输油管道中的穿透率，建立油垢厚度与射线计数之间的响应关系。

Product sub-pipe, plate, easy to install, security, environmental protection, in the scope of use as applied to HVAC systems regardless of wind pipes, refrigeration and heating equipment, hot water piping and process piping cold insulation, vapor density to ensure the whole system sex.

产品分管材、板材，易于安装，安全环保，在使用范围内适用于暖通系统中的不管和风管，制冷和制热设备，热水管道及工艺管路的保冷保温，保证整个系统的汽密性。

The 995 can be used in a variety of installations, including health hazard cross-connections in internal piping systems and for containment at the service line entrance.

系列995减压区总成适用于按照美国国家管道规程和水主管部门的要求保护饮用水供应系统。995系列可以用于各种安装，包括用于封堵接户管线进口的内部管线系统中的健康危害交叉连接。

If the flow is correct, the reason for high inlet pressure must be increased resistance upstream in the ducting.

如果流量正常的，如果入口的压力过高，管道中必须增加逆流的抵抗力。

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。