管道

According to the characteristic of city and researching result of correlation in civil and in foreign, The paper had researched the city gas pipelines generally in the way of fuzzy collocation assessment method.

本文运用模糊数学中模糊综合评判方法结合燃气管网在城市的特点，借鉴了国内外关于天然气管道的研究成果，对城市天然气管网的风险评价进行了全面的研究。

Upon an energetic level, Comfrey assists in assuring that there is chi running through all channels, and will assist in unblocking unstuck meridians.

在一个能量水平上，紫草协助确保气透过所有管道而运作，并协助将受阻滞的经络解开。

There should be a better channel of communication between the U.S.

中美两国该有较好的沟通管道。

There should be a better channel of communication between

中美两国该有较好的沟通管道。

The article briefly introduces varieties and characteristics of the common gas pipe compensator at present, and advises its choice.

文章主要介绍了目前常用的煤气管道补偿器的种类和特点，并对煤气补偿器的选择提出了建议。

The structure is complex at the joint root of welding pipelines, where exist cold solder joint and cracks.

管道焊缝根部区域结构复杂，是未焊透和裂纹的产生处，反射回波杂乱，是超声波检测的重点也是难点。

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。

Through analysis and calculation I find the pressure loss of the compressed gas in the pipelines is more obvious.

通过分析和计算发现，管道内压缩气体的压力损失比较明显。

A rotary branch means is provided in the main body, and includes two pipes having different diameters and arranged concentrically.

另外一个包括两个不同直径的管道的旋转的分支部分被安装在主体部分上

Port entry area shall be 100% of the mating pipe port area and reduce concentrically down to that shown on approved submittal drawings.

阀门的进口流道截面应该与管道流道截面100%相同，然后沿着圆心逐渐缩小到经过认可的图纸所指示的位置。

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。