1、

Application of pressure sensor in testing water pipe resistance coefficient

压力传感器在给水管道阻力系数测试中的应用

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2、

Ultra high molecular weight polyethylene pipe ( UHMWPE) has excellent properties of impact-resistance anti-corrosion abrasion-resistance self-lubricating non-toxicity and low temperature resistance.

超高分子量聚乙烯(UHMWPE)管道具有优异的耐冲击、耐腐蚀、耐磨损、自润滑、无毒和耐低温等性能,其寿命是普通钢管的7~8倍。

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3、

On virtual simulation test for running resistance of pipe belt conveyor

圆管带式输送机运行阻力虚拟仿真试验研究

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4、

Development of New Type of Erect Dike of Cast-in-situ Concrete Thin-wall Pipe Pile and Study on the Moment Resistance of the Dike

新型PCC桩结构直立式海堤技术开发及其抗弯性能研究

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5、

In the three-way pipe, local resistance generally produces at the rendezvous position of the mainstream and branch and becomes more subdued along the axial direction.

对于T型三通管,局部阻力一般产生于主流和支流汇合并发生碰撞的位置,且其作用随着轴向距离的延长而逐渐减弱。

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7、

The operating temperature effect of heat pipe to total thermal resistance coefficient is not very distinct in the experimental conditions;

在试验范围内,阶梯翅片热管散热器的总热阻随热管工作温度的变化不明显;

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8、

Moreover, the influence of heat pipe length on the thermal resistance and the coefficient of equivalent heat conductivity were discussed. Results show the lengths of evaporator section and condensation section play a decisive role on the overall heat transfer performance.

讨论了热管长度变化对热管热阻和当量导热系数的影响,结果表明热管蒸发段和冷凝段的长度对热管的整体传热性能起决定性作用。

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9、

On the base of both consideration of heat transfer performance and resistance, the optimization and research are carried out on single spiral duct double pipe condenser.

本文在综合考虑传热性能和摩擦阻力等因素的基础上,对单螺旋槽套管式冷凝器的结构进行了优化和研究。

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10、
11、

The coupler of Fe-Mn-Si-C alloys was developed and the influence of bearizing rate of coupler, connection length and thickness of pipe wall on the connection strength and pressure resistance was analyzed.

研制Fe-Mn-Si-C形状记忆合金管接头,并分析管接头扩孔率、连接长度、管壁厚度对连接强度及其耐压性能的影响。

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12、

Calculation method of flow-in coefficient and resistance loss for radiators in horizontal single-pipe cross-over heating system

船舶螺旋桨进流补偿导管单管水平跨越式系统散热器进流系数和阻力损失的计算方法

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13、

Relationship between Microstructure of Seamless Steel Pipe and Properties of HIC Resistance

无缝管线管显微组织与抗HIC性能的关系

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14、

Makes some appropriate adaptations on the non equal temperature difference method for the single and double pipe system used in highrise buildings, gives reduced resistance coefficients of the whole service risers to make quick hydraulic calculation.

按不等温降计算法的思路对高层建筑单双管系统进行了变通处理,给出了水力计算中整根立管的折算阻力系数,以便进行单双管混合式系统的水力计算。

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15、

By a case study, obtains the following results: the tree-shaped chilled water pipe network in district cooling systems should not be designed by equal specific frictional resistance or by equal velocity;

通过实例计算,得到以下结论:区域供冷系统冷水管路的设计不能按传统的等比摩阻或等流速设计思想进行;

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16、

Test method for acid resistance of vitrified clay pipe

GB/T2835-1998陶管耐酸性能试验方法

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17、

Analysis, Design and Calculation to Operation Resistance of Pipe Belt Conveyor

圆管带式输送机的运行阻力分析与设计计算

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18、

The influence of contacted thermal resistance, length and space of hot skid, inner temperature of pipe on skid-mark were obtained.

分析了接触热阻、垫块长度和间距、水管内壁温度等因素对黑印温差的影响;

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19、

The Study of Influence to Hydraulic Computation of Pipe Network on the Bypass Local Resistance Losses

旁路局部损失对管网水力计算影响的研究

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20、

Modeling and experimental analysis of turning resistance of drill pipe in horizontal holes

径向井钻杆转向阻力建模及实验分析

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