查询词典 by-pass pipe

The invention is suitable for pipe shell type heat exchanger, better heat transfer effect can be achieved by adopting the arrangement method for heat transfer pipe according to the invention, and heat exchanger having different temperature difference of intake water and outtake water can be conveniently combined.

本发明适用于管壳式换热器，在换热装置中采用本发明的传热管的排列方法，可以达到较好的传热效果，而且可以方便地组合成不同进、出水温差的换热器。

Particularly paragraph 5 generation products WXG-frequency conversion governor without pressure (non-smoking Cheng) pressurized water pipe network equipment to be built pools, water tanks, passed 50%-90% without extensive phenomenon, saving investment, no two pollution, fully automatic operation, continuous water supply, and many other advantages, and create a water supply equipment direct contact in the water pipe precedent and surrounded by five ministries to the Ministry of Science and Technology, 2000 national focus of new products.

特别是第5代产品WXG型变频调速无负压管网增压供水设备，以不用建水池、水箱，节电50%-90%，无跑冒滴漏现象，节省投资，无二次污染，全自动运行，停电不停水等诸多优点，开创了供水设备可直接串联在自来水管道上的先例，并被科技部等5部委授予2000年度国家级重点新产品。

Mayor Bloomberg said the explosion at the 83-year-old steam pipe may have been caused by cold rain water seeping into the pipe.

布隆伯格市长说， 83 年前舖设的蒸汽管道发生的爆炸可能是由於冷雨水渗入管道。

Mayor Bloomberg said the explosion at the 83-year-old steam pipe may have been caused by cold rain water seeping into the pipe.

布隆伯格市长说， 83 年前舖设的蒸汽管道发生的爆炸可能是由于冷雨水渗入管道。

Mayor Bloomberg said the explosion at the 83-year-old steam pipe may have been caused by cold rain water seeping into the pipe.

布隆伯格市长说，83年前铺设的蒸汽管道发生的爆炸可能是由于冷雨水渗入管道。

First, by the allocation of irrigation water directly into the ditch outlet Xiaqi, achieve no water loss, greatly improve the utilization of water; are two irrigation systems, replace the pipe with water furrow, not square, and the right to re-use, reducing the irrigation investment; Three is the use of the gate with the outlet opening to adjust a constant and accurate control of flow into the trench plot, for different soil and different groove specifications Xiaqi can greatly improve irrigation uniformity; four gates are porous pipe irrigation system for the flow tubes, and the blind to cross the flow tube as compared to the wall can reduce the work under stress, and reduce the damage to the opportunity to prolong the service life of thin-walled tube; are five gates to facilitate the installation of irrigation systems, pipes, and, upon request, to fight孔安outlet assembly to ensure the accuracy of positioning with the outlet.

一是灌溉水经配水口直接进入沟畦，实现无输水损失，极大地提高了水的利用率；二是管灌溉系统代替配水垄沟，不占地，且右重复使用，降低了灌溉投资；三是利用配水口的闸板开度来调节准确恒定地控制进入沟畦的流量，适用于不同土质和规格不同的沟畦，可大大提高灌水均匀度；四是闸管灌溉系统为多孔出流管，与等过流量的盲管相比，可降低管壁承受的工作压力，并减少受损机会，从而延长薄壁管的使用寿命；五是闸管灌溉系统安装方便，并可根据要求打孔安装配水口，确保配水口定位的准确性。

Sponsored by the Scientific Research Foundation of Harbin Institute of Technology, this dissertation aims to establish microrobot walking in pipe with the diameter of 16mm to 18mm based on abundant of investigation and research work. Different research approaches are implemented, ranging from basis study to unit technology to system. An in-depth research on in-pipe micro locomotive and controller was conducted on the basis of piezoelectric bimorph actuator and the principle of Impact Drive Motion .

本文在&哈尔滨工业大学科学研究基金&支持下，以建立在直径φ16mm～φ18mm的管内行走的微小型机器人及其控制系统为目标，进行了大量的调研和研究工作，采用从基础技术，单元技术到系统集成的研究方法，对基于双压电膜驱动和采用惯性冲击式运动机理的管内移动机器人及其控制系统进行深入的研究。

By setting up mechanical model, the relationship of curve radius, jacking force and effect factors such as pipe diameter, length of pipe section, thickness of wooden piece, elasticity of material and the difference of jack displacement is investigated.

通过建立力学模型对曲线路线半径R、顶推力P和影响因素如管径D、管节长L、木垫片厚a、材料弹性模量E以及工具管油缸行程差等的关系进行推导。

Co-operation with the above-mentioned enterprises, the company's hydroelectric generating components (such as the tail pipe lining, machine pit lining, elbow pipe, scroll, seat ring and medium-sized parts of complex structures), product quality and delivery time frame were well received by users.

在与上述企业的合作中，公司生产的水电机组部件(如尾水管里衬、机坑里衬、肘管、蜗壳、座环等大中型复杂结构件)，产品质量和交货时限均深受用户好评。

Weld the inside longitudinal seam of the tack welded pipe with fixed welding heads by moving the pipe.

采用纵列四丝埋弧焊在钢管内侧进行焊接，工件移动，焊头固定的焊接方式，有利于焊接质量的控制。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。