查询词典 pipe-rack

Founded in 1990, now covering 45,000 square meters, existing staff of 168 people, of whom 32 were technical staff, the production FRPP pipe, PP pipe, PPH pipe, PE pipe 12,000 tons.

公司始建于1990年，现占地45000平方米，现有员工168人，其中技术人员32人，年生产FRPP管材，PP管材，PPH管材，PE管材12000吨。

When you take the instruments from these minority people you will see that these music instruments are very similar and they are all pipe music instruments made with bamboo, reed pipe and gourd and the names are also similar, reed pipe, gourd pipe and gourd music instrument etc.

敲起锣，打起鼓，阿佤唱新歌！。。。。接过这些云南少数民族手中乐器一看，大同小异，都是用竹管、葫芦做成的管乐器---叫法亦同：芦笙、葫芦笙、葫芦丝等。

Row of circular arc steel pipe were used to support respectively in the steel pipe support longitudinal base and the crown on the skewback, causing the steel centering and the steel pipe support combines the overall rigid arch centering, both common stress, has enlarged the arch centering application span and the steel pipe support altitude effectively.

采用了在钢管支架纵向底部和顶部各设置4排圆弧钢管支撑于拱座上，使钢拱架与钢管支架组合成整体刚性拱架，两者共同受力，有效加大了拱架的应用跨径和钢管支架的高度。

Products range can specifications with a variety of models of spheroidal graphite cast pipe, PVC pipe, glass pipe, cement pipe and other big match of the interface.

产品种类齐全，可与各种规格型号的球墨铸管、PVC管、玻璃钢管、水泥大口管等的接口相匹配。

Feed the gross pipe from front plant, cog down the upper roller to given size to rotating bring the pipe into rolling zone for reducing diameter and wall form rolling; after rolling from head to tail, turn 90Deg with the gross pipe, top bar and core head by tilter for next rolling travel that inverse roll to head to bring the pipe back to front plant; then, turn again for next periodical to-an-fro rolling till design size request.

将毛管自轧机前台喂入，将上轧辊压下至设定的尺寸，毛管在轧辊的旋转带动下曳入轧制区域，进行减径和减壁变形轧制；毛管从头部轧制到尾部后，将毛管、顶杆及芯头在翻转装置的作用下翻转90°，进行下一个轧制行程，反向轧制到头部，毛管回到轧机前台；再将毛管、顶杆及芯头在翻转装置的作用下翻转90°，进行下一个轧制周期往复轧制，轧制到毛管成达到设计尺寸要求。

To solve the problems in present hydraulic calculations of gas pipe network such as numerous data-inputting, unprecise output and a lack of hydraulic calculation methods to keep consistent with steady flow and non-steady flow in real working conditions of gas pipe network, in the paper the author has set up a mathematical model of heat transfer process of gas in pipes on the basis of thermodynamic basic theories and obtained more accurate calculation methods of gas storage quantity in long conveying pipes and urban pipe network of high pressure. This research achievement has been applied to real pipe network.

本文研究目的是解决目前燃气管网水力计算中存在的诸如输入数据繁琐、计算精度不高、缺乏符合实际燃气管网工况的稳定流及不稳定流管网水力计算方法等问题，试图根据热力学基本理论建立燃气在管道中传热过程数学模型，给出较为精确的长输管线及城市高压管网储气量的计算方法，并将研究成果应用于实际管网运行中。

According to field testing data analysis, the author find out that buried pipe-in-pipe heat exchanger, which act as a important part of GSHP system, can supply sufficient heat flow and its operation performance is better than that of a wind cooled--heat pump. The author also finds out the self-equilibrium mechanism GSHP system operated with buried pipe-in-pipe heat exchanger, which give experiences for design and operation of a GSHP system.

通过实验测试与分析，证明了地下埋管换热器作为地源热泵系统的重要一环能够为热泵提供良好的热源，使地源热泵的性能参数优于风冷热泵，发现了埋管换热器匹配热泵运行时独特的自平衡规律，为设计和运行地源热泵技术提供了经验。

Analysis of pipe burst is one of the important spatial analysis functions of underground pipeline network comprehensive GIS, the thesis puts forward the main assignment of pipe burst analysis, and analyzes the character of the usher nodes and the retral nodes of arborescent pipe network. The paper realizes the valve topological analysis of the pipe network.

爆管分析是地下管网GIS中重要的空间分析功能之一，论文论述了爆管分析的主要任务，阐述了爆管分析的理论模型，分析了树状管网中结点的父结点、子结点的性质，实现了管网的阀门拓扑关系的分析，在此基础上，完成了地下管网爆管关阀分析的算法实现。

PVC pipe,mult-cavity pipe,foaming pipe, enwind pipe

PVC管材，一模多腔管材，发泡管、缠绕管等

The paper studies fault diagnosis technology based on fruticose gas pipe network which is universal in small towns,and gives a particular description of domestic and foreign gas pipe network fault diagnosis technique based on hardware and software currently. The author uses graph theory to build up hydraulic analysis model of natural gas network and presents its solution methods. Besides, the author works out the relation between gas pipe pressure and flux in unsteady condition of fluid flow according to pressure boundary condition and differential equation group, and puts forward fault diagnosis methods and steps of the fruticose natural gas pipe network of middle pressure based on the simplification of this relation.

本文针对小城镇比较普遍的枝状天然气分配管网进行故障诊断技术研究，详细叙述了目前国内外基于硬件和软件的燃气管网故障诊断技术，利用图论理论建立了天然气管网水力分析模型并叙述了其求解方法，根据燃气管内流动的微分方程组和压力边界条件求解出非稳定流动时燃气管道压力和流量的关系，并在对此关系进行简化的基础上提出了基于中压枝状天然气管网的故障诊断方法和步骤。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。