Research on stability of valve regulating at the end of water conduit system

Moreover, the earth-rock backfill of head conduit can recover early plant cover, and the layout is fit for terrain where topographical falling gradient is less than 20 degrees.

同时，回填管回填土石后，能够恢复原来植被，保护生态环境，且较适于地形坡度小于20°地面布置。

For high-head and long-distance head conduit of hydroplant, using backfill-conduit form can reduce project cost and accelerate construction progress obviously.

高水头、长距离引水的水电站压力管道采用回填管形式可明显地降低工程造价，加快施工进度；

The Optimization Analysis of Weld Residual Stress for Head Conduit

压力管道焊缝残余应力的优化分析

The utility model belongs to a scope of electric pipe connection pieces, in particular to a muff-coupling clamping closed galvanized steel conduit joint device.

本实用新型公开了属于电气管线连接件范围，特别涉及一种套接紧定式封闭型镀锌钢导管接头装置。

On the basis of defining energy dissipation ratio in a closed circular conduit as specific energy loss of hydraulic jump divided by specific energy of initial flow, this paper derives a basic equation for calculating this energy dissipation ratio and describes its characteristic.

在定义管道内水跃的消能系数为水跃单位能量损失与跃前断面水流原有单位能量的比值的基础上，推导出计算消能系数的基本公式，并分析了它的规律性。

Suspension index of the flow in a closed conduit is analysed analysed considering the mechanism of the turbulent sediment sUSpension.

根据紊动悬浮泥沙的机理，本文分析了泥沙在管路中输送时有效悬浮指标的表达式。

Waterproof Sealing of municipal project, sewage conduit, sealing of dilatation joint of tunnel and road project, adhesion and sealing of ceramics.

市政工程、排污管道的防水密封等，隧道及道路工程的混凝土伸缩缝密封，陶瓷工程的粘接及填缝密封。

Hardening sewage conduit, erecting sewerage system were significant measure in preventing ground water being polluted.

养殖场排污道硬化、建立污水处理系统，是防止地下井水被污水污染的重要措施。

Therefore, soil and water conservation engineering should be well done and the construction of sewage conduit should be strengthened to improve the eco-environment of the Qionghai Lake.

因此，要作好流域内的水土保持工程，加快污水管道建设，才能改善邛海生态环境。

Pipe jacking construction technique of sewage conduit

污水管道顶管施工技术

The paper discusses the control valves which use in the air conditioning water or steam conduit of intelligent buildings, introducing their structure, main parameters, working principles, characters and how to take the generic method to design and select the caliber of control valves.

合理选择阀门在供水管道中的重要性文章讨论应用于智能建筑空调水、汽系统中的控制阀门，介绍它们的结构、主要参数、工作原理、特征和选择阀门口径的简化方法。

Analysis of crack defect occurred on steam conduit of desuperheating water for boiler superheater of 600 MW Unit

600MW机组锅炉过热器减温水导汽管的裂纹缺陷分析与处理

On the Compound Matrices Initial Analysis of Buried Steam Conduit Composite Thermal Insulation Technique

直埋蒸汽管道复合保温技术浅析

Analysis of cracks in reheater steam conduit of boiler type DG1025/ 18.2 and corresponding countermeasures

DG1025/18·2型锅炉再热器导汽管裂纹分析及对策

Microstructure state evaluation and residual life prediction for steam conduit of boilers in service

在役电站锅炉导汽管组织状态评估与剩余寿命预测

The principle points for aeration/ deaeration valve installation of long distance pressured delivery conduit are scientific quantification, differentiated molding, three-point and three-line and discharge control.

长距离有压输水管道排（进）气阀的设置要点为：科学定量、区别造型、三点三线、控制流量。

The four-step energy dissipator had been adopted as stilling basin for the outlet of water delivery conduit of the Boshan Reservoir in Henan Province.

河南省薄山水库输水道出口消力塘采用四级消能工进行消能。

Study on Aeration/ Deaeration of Pressured Delivery Conduit s

有压输水管道的排（进）气问题研究

Experimental Studies on Reducing Discharge Capacity in Closed Conduit Due to Inflow in Gate Shaft

闸门井进水减小泄水道泄流能力试验研究

The siphon type of such spring has a much more complex mechanism than normal siphon feature, which requires specific recharge-discharge structure of conduit water flow.

其中，虹吸式喀斯特周期泉具有比一般虹吸现象更为复杂的机理，它对管道水流的补排结构有特殊的要求。