perforated pipe
英 [ˈpɜːfəreɪtɪd paɪp]
美 [ˈpɜːrfəreɪtɪd paɪp]
多（穿）孔管
双语例句
- Perforated pipe sprinkler Application of Automatic Detecting and Fire Extinguishing Device in Power Plant
多孔管喷水灭火装置火探管式自动探火灭火装置在电厂中的应用 - The hydraulic calculation of perforated outlet pipe of secondary sedimentation thank has been presented in this paper.
主要介绍了二次沉淀池淹没式穿孔出水管的水力计算方法。 - PS-Consolidation of Weathered Rock at Mogao Cliff by Perforated Pipe Grouting Technique Application of Steel Flower Tube Consolidation Grouting Method in Deep Foundation Supporting Engineering
莫高窟崖顶强风化层PS花管注浆加固试验研究钢花管灌浆固结技术在深基坑支护工程中的应用研究 - A draft tube for quick exhaust comprises a tube body, a perforated pipe, a guide hole tube, a helical blade set, a trepanning cover and two bearings.
一种快速抽排的导流管，包括管体、多孔管、导孔管、螺旋叶片组、套孔盖、二轴承； - The results show that choosing perforated pipe with suitable structure and putting it into the thermosyphon can enhance the heat transfer effect.
结果表明，合理选择分流管的结构尺寸，将其置于热虹吸管内，可以起到强化沸腾换热的效果。 - Treatment of Roadbed Defects of Expressway Using Perforated Steel Pipe Grouting Technique
钢花管注浆法在高速公路路基处治中的应用 - Experiment of full-scale operation in perforated pipe with divergent tube in sludge discharge
扩张管嘴排泥管生产性试验研究 - The proposed formula lay a solid foundation for further research and design of the perforated drainage pipe system.
这些公式的建立为渗透式雨水排水系统的理论研究及设计奠定了基础。 - Circumferential sprinkling water curing technique utilizing rubber perforated pipe in high pier construction
高墩施工橡胶花管环向洒水养护技术 - A study of uniform water distribution in the perforated pipe system
穿孔管配水系统均匀布水问题研究 - Acoustic transmission matrix of reactive muffler containing units made of perforated pipe
抗性消声器中含穿孔管时的声传递矩阵 - In this paper, the parallel cluster is applied to simulate the inner flow field of a complex muffler using CFD, in which the perforated pipe is the main part with 2080 holes.
本文利用并行计算机群，克服了硬件的困难，用计算流体力学对一复杂消声器内部流场进行了模拟。消声器以穿孔管为主要内件，共有2080个小孔。 - Some general methods of dealing with intersection conflict are presented, such as double-well method, square-ditch method, perforated pipe method and return siphon method.
介绍了在处理雨、污水交叉管道交叉冲突时常用的一些方法（如双井法、偏方沟法、多孔管法）等。 - The dimensionless formulae of water head curve was deduced by establishing fluid differential function of perforated pipe and three categories of conditions to discriminate the water head distribution were given, so a theoretical method to calculate the distributive uniformity of perforated pipe with best reliability can be made.
本文通过建立多孔配水管水流的微分方程，推导出计算压力线的无量纲公式，并给出了三种压力分布型式的判别条件，从而为多孔管配水均匀度提供可靠的理论计算方法。 - Theoretical Analysis on the Catch-Water Uniformity of Perforated Water Pipe
多孔管集水均匀性的理论分析 - The Influence of the Type of Flow in Perforated Pipe on Calculating Water Head Losses
多孔管水流流态的变化对水头损失计算的影响 - Sound propagation in tubular structure containing perforated coaxial pipe
管道结构中含同轴穿孔管时的声传播特性 - Abstract: Fluid inside the perforated pipe will be divided to branches and the pressure and the velocity of the fluid will be changed ceaselessly along the prolonged axis due to the friction of pipe wall and the change of dynamic momentum.
流体在多孔管中被分成若干支流，因管壁摩擦和动量的变化使流体压强和流速沿轴向不断改变。 - Effect of the orifice diameter of perforated pipe on a submerged membrane bioreactor
曝气管开孔直径对一体式膜-生物反应器的影响 - In this paper, the techniques of consolidation by perforated pipe micro-root pile are introduced. The sand-sliding slope consolidation mechanism and design theory of perforated pipe micro-root pile was studied based on field investigation and model tests.
从稳定砂坡体和保护砂坡脚的一般措施入手，通过野外调查和室内模型试验，探讨花管微型树根桩固砂机制、设计要点及固砂技术。 - The sonic field transmission matrixes of perforated absorbent pipe is given after the transmission performance of perforated pipe is studied.
本文通过声波在穿孔声管中传播特性的研究，导出了声波在穿孔声管中传播的声场传递矩阵。 - Considering the resonance and expansion chamber of perforated pipe, its theoretic model is developed and perfected according to acoustic transfer theory.
考虑穿孔共振消声单元具有共振和扩张两种消声功能，依据声传播理论，发展和完善了穿孔共振消声单元理论模型； - Calculation and Renovation of Perforated Sludge Discharge Pipe in Waterworks Study of the Application of Geotextiles Tube
自来水厂穿孔排泥管的复核计算和改造充泥管袋技术的应用探讨 - The lab test and middle test were done at first. The best perforated pipe with divergent tube from middle test is comparied with ordinary perforated pipe in the same condition in practice.
先后进行了小试和中试，根据中试所得较优的一种扩张管嘴排泥管应用在生产性试验中，在同等条件下与普通穿孔管进行比较。 - In this paper the existing methods for perforated tube calculation was reviewed and the principles for diameter variable perforated pipe design are recommended together with the formulae established for calculation and practical examples.
文章综述了现有多孔管的计算方法，提出了一种变管径多孔管的设计计算原理，并建立计算式，给出设计计算方法和实例。 - A new sludge discharging equipment is developed to ameliorate the performance of ordinary perforated pipe for its hard start and jam.
针对给水厂沉淀池普通穿孔排泥管起动困难易堵塞等问题，研制出一种新型排泥装置&扩张管嘴排泥管。 - Studies of acoustical performance of perforated absorbent pipe muffler
穿孔声管消声器消声性能研究 - However, the traditional exhaust silencers, which are normally constructed by combination of expansion chamber, and perforated pipe or perforated board, are with high exhaust resistance, but poor noise reduction especially for the low-frequency band noise.
而传统排气消声器大都由扩张室加穿孔管或穿孔板等组合而成，其排气阻力大，消声性能差，特别是对排气噪声中占主导地位的低频部分消声效果差。 - Study on the influence of connecting pipe length, cross-sectional area and administrative area on the transmission loss of Helmholtz muffler. Study on hole diameter, perforated pipe diameter, diameter of resonant cavity of straight-flow perforated tuber muffler transmission loss of influence.
研究了连接管长度、截面积和主管截面积对Helmholtz消声器传递损失的影响规律；穿孔孔径、共振腔尺寸和内径尺寸对直通穿孔管消声器传递损失的影响规律。