parallel pipe

the no-push compensator for heat supply pipeline is composed of parallel pipe, connecting pipe, sleeve pipe, core pipe and sealing system.

管道变高无推力补偿器涉及一种供热管道变高补偿装置，该装置由并联管、联接管、套管、芯管和密封系统组成。

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hand taps for parallel pipe threads

平行管螺丝手用丝锥

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hand-and machine-operated circular screwing dies for parallel pipe threads. g series.

煤气管道圆柱螺纹手用和机用圆螺丝板牙

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the meter takes the double wave pipe structure, the two parallel pipe separate fix in "i" bracket.

仪表采用双波纹管结构，即两只波纹管分别安装在“工”字型支架两侧的对称化置上。

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screw thread limit gauges for parallel pipe threads

管螺纹器用螺丝限制量规

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analysis of superimposed load induced by propulsion of adjacent level parallel pipe-jacking

相邻水平平行顶管推进引起的附加荷载分析

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Analysis of site monitoring of ground deformation induced by parallel pipe jacking construction

平行顶管施工引起的地面变形实测分析

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study on calculational method of ground settlement induced by level parallel pipe jacking

水平平行顶管引起的地面沉降计算方法研究

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screwing dies and dienuts - specification for hand- and machine-operated circular screwing dies for parallel pipe threads; g series

螺丝板牙和螺母状板牙.手用和机器操作平行管螺纹用圆形螺丝板牙规范；G系列

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circular screwing dies for parallel pipe threads

平行管螺丝用圆形螺丝模具

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The computing formulas of superimposed load on adjacent level parallel pipe induced both by bulkhead additive thrust, force of friction between shield and soil, and force of friction between follow-up pipes and soil are derived from the Mindlin solution in elastic mechanics.

利用弹性力学的Mindlin解，推导得到顶管正面附加推力、掘进机和后续管道与土体之间的摩擦力在相邻水平平行管道上引起的附加荷载计算公式。

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application of converted way in near parallel pipe underground

反演法在探测相邻平行地下管线中的应用

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the connecting pipe is welded respectively to parallel pipe and sleeve pipe and the core pipe can slide in sleeve pipe.

联接管分别焊在并联管和套管上，芯管一端套装在套管中并可在其中滑动。

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mechanical analysis of superimposed load introduced by propulsion of adjacent parallel pipe

相邻平行顶管推进引起附加荷载的力学分析

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