查询词典 water pipe

In this paper,the branch pipe network as a virtual ring pipe network is proposed,and the equation for it has been set up.It is proved that Kirchhoff law of ring pipe network is a kind of special form of equation,which is the virtual ring pipe network.

本文中提出将树枝管网视为虚环，建立了虚环方程，证明了环形管网的基尔霍夫定律是虚环方程的一种特殊形式，环形管网方程和虚环方程互相兼容，可联立求解。

The name is "Shanghai Yuezhen Industrlle CO.,LTD." Now we have two boards, but a leading body manege. It is an entorpris of producing plastic products. It is expert in which produce all kind of PVC-U Cavity wall Corugated pipe, Ridded pipe, PE pipe protocting fibre optise Cable and pipe fiting. The products have been maily used in constructtion projects of telecommuniction line, power transmission and municipal engineering. Such as, Shanghai the Bund project, New Railway station, North-South Skgway, Shanghai inside and outside highway traffic looplline, Nanpu Bridge, Pudong International Airport, Songjiang University urban area, etc. As well as our prodcts ave slid well to mang prainces in Zhejiang, JiangSu, Anhui, Henan, Jiangxi and GuangXi.

企业专业生产PVC-U双壁管波纹管、PVC-U加筋管、PE光缆护套管的工业企业，产品主要用于邮电通信、电力、市政工程建设项目上，上海外滩一期、二期、新客站、内外环线、高北高架、南浦大桥、杨高路远东大道、浦东国际机场、松江大学城等重大工程建设项目都广泛使用我厂的产品，产品也遍布浙江、江苏、安徽、河南、江西、广西等省市。

Hot galvanized, electro-galvanized, chemical cleaning and other metal surface treatment plant has imported 450 tons of fully automated large-scale hot-dip galvanizing furnace, there are many product lines such as hot galvanized, steel pipe, copper pipe, ferro–nickel alloy pipe, stainless steel pipe and surface treatment of component pickling, passivation and phosphatization with the processing capacity of 35,000 tons above annually.

热镀锌、电镀锌、化学清洗等金属表面处理工厂拥有进口全自动450吨的大型热镀锌炉，现有热镀锌、钢管、铜管、铜镍铁管、不锈钢管及构件酸洗钝化、磷化等表面处理生产线，年加工能力35000吨以上。

Pipe wrench dogs within each pipe rack pot are used to loosen the pipe from the rotary head coupling, when return-ing drill pipe to the rack.

当将钻管放回管架上时，用每个管架罐内的管钳爪将管子从转动管接头上松开。

In order to provide quality FRPP pipe, PP pipe, PPH pipe, PE pipe, tube and services.

为向用户提供优质的FRPP管材，PP管材，PPH管材，PE管材、管件及服务。

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。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。