Design and application of spiral half-round tube jacket plant

The spiral wave instability in vortex of two-layer barotropic fluid

两层正压流体涡旋中螺旋波的不稳定

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Charactristics, Productive conditions and reasons of the spiral flow at inlet of the centrifugal pump is presented here, based on the theory of three-dimen-sional flow and experimental studies.

本文在试验研究基础上，用三维流动理论，论述了离心泵入口旋流的特性、产生条件和原因，给出了旋流存在区域。

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The water filling and pressure maintaining system mainly included: pressure pump and its control device, blockage end at the spiral case inlet, sealing ring on the stay ring of turbine, etc.

蜗壳内充水保压系统，主要包括加压水泵及其控制装置、蜗壳进口闷头、座环密封环等组成。

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Flow field characteristics of cyclone separator with a spiral inlet

蜗壳式旋风分离器内流场的特点

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Other content in this paper is the design and investigation of spiral inlet port.

本文的另一项内容是螺旋进气道的设计和研究。

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Optimization of spiral inlet's structure on the basis of numerical simulation

基于数值模拟的螺旋进气道结构优化

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It is pointed out in this paper that the wall of hemispiral suction chamber in centrifugal pump with spiral housing is composed basically of an inner revolving surface, an outer revolving surface, and a cylindrical surface parallel to the axis of the pump.

本文提出在蜗壳式离心泵中，半螺旋形吸水室的过流表面主要由内旋转面、外旋转面和一个平行于泵轴线的柱面组成；

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Thorough experimental investigation and theoretical analysis show that the capacity of flood discharge is controlled by the inlet wear, the scale of gyrating shaft well and the configuration of spiral housing.

通过深入的试验研究和理论分析，表明竖井泄洪洞的泄流能力受平底闸过流能力，竖井尺寸和涡室进口的控制。

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Thirdly, design three bands of typical antenna, such as yagi, four arm spiral and horn, and establish mathematical model, and then give the simulation algorithm based on FDTD method.

设计了八木、四臂螺旋以及喇叭三种波段的典型天线，建立了强电磁脉冲能量对上述星载天线的毁伤数学模型，并据此给出了基于FDTD法的仿真算法。

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According to the maximum stress strength criterion, the burst pressure formula for the single spiral and the spiral with hoop filament-wound toroidal pressure vessel were obtained.

利用最大应力强度准则，得到了单一螺旋缠绕及螺旋加环向缠绕圆环压力容器爆破压强的计算式。

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Spiral type steel bar hoop made by spiral steel bar hoop machine controlled by microcomputer can increase the antivibration property of building.

微机控制螺旋钢箍机所加工成型的螺旋型钢箍，能够提高建筑物的抗震性能。

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The writer inventively uses microcomputer to control spiral steel bar hoop machine and designs a digital control system based on single chip machine for spiral steel bar hoop machine.

本文开创性地将微型计算机用于螺旋钢箍机的控制，设计了基于单片机的螺旋钢箍机数字控制系统。

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Design of Monolithic Processor Control Software on the Spiral Steel Hoop Molding Mechanism

螺旋钢箍成型机控制软件的设计

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Inquired into strictly the length calculation formula of round column component spiral hoop steel with its common errors, and figured out accurately the length coefficient of steel round column component spiral hoop based on combination fact situation of works.

针对目前长度计算公式的某些错误，进行了严密的理论推导并结合工程的实际情况，比较准确地给出钢筋混凝土圆柱形构件螺旋箍筋长度系数，从而更方便实际工程中的快速计算与应用。

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Based on the constitutive law of confined concrete, the axial compression ultimate analysis of the circular concrete column with spiral hoop is investigated, and the calculated methods of the ultimate compressive capacity and the ultimate deformation are presented.

本文利用侧限混凝土的本构关系，对采用螺旋箍筋的混凝土圆柱在单调轴压荷载作用下进行极限状态分析，并提出了极限承载力和极限变形的计算方法。

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In the process of civil engineering actions, calculation of the spiral hoop steel engineering quantity of column component, is closely related to the length of spiral hoop steel.

在土木工程活动中，常常要计算圆柱形构件螺旋箍筋的工程量，其工程量的正确计算与箍筋长度密切相关。

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Test indicate that on deploying spiral hoop restrain occasions, it could effectively reduce lap length.

试验表明，在配置螺旋箍筋约束的情况下，可有效地降低钢筋的搭接长度。

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The Study of Shear Property of High-Strength Concrete Column Confined with High-Strength Continue Compound Spiral Hoop

高强混凝土高强连续复合螺旋箍筋柱抗剪性能的研究

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Study on correction calculation engineering quantity of spiral hoop steel

螺旋箍筋工程量的正确计算

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Fast Location of Spiral Roadbed Plane in Highway Construction

高等级公路螺旋曲面段路基平面位置快速定位方法

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