| 1. | A spiral pipe or series of spiral pipes , as in a radiator
螺旋管一个螺旋管或一系列螺旋管，如在电热器中 |
| 2. | In this paper , spiral pipe flows generated by locally installing guide blade were researched
本文主要针对局部安装扭曲导流条的方式产生的圆管螺旋流做以研究。 |
| 3. | In general , spiral pipe flows are generated by three means : tangentially inletting medium , guiding fluid by vanes with a certain angle and axially rotating pipe
一般来说，螺旋流的常规产生办法有三种：切向进流、安装导流条及旋转管道。 |
| 4. | Pipe production line : double wall metal reinforced spiral corrugated pipe production line double wall corrugated pipe , steel plastic composite pipe and pe pipe and hdpe spiral pipe production line
管道类? ?钢骨架增强缠绕波纹管、大口径双壁波纹管、钢塑复合管以及实壁或结构壁聚乙烯管成套生产设备。 |
| 5. | For the influences of reynolds stress , the turbulence model was founded . and then , the formation and development of spiral pipe flow were studied by numerical simulations and experimental measures
另外，本文在研究中考虑了雷诺应力的影响，使用了紊流模式进行数学建模，通过数值模拟和试验测量的手段探讨了这类圆管螺旋流形成及流动的规律。 |
| 6. | Sediment transportation by spiral pipe flow has been used . it was a new way of sediment transportation with the advantage of high - concentration , energy - saving and high - efficiency . the paradox of concentration and energy of sediment transportation in smooth flow was conquered
圆管螺旋流最近已被用于输沙方面，作为一种新的输沙方式，它具有高浓度、低能耗、远距离和不淤积的优点，克服了平直流管道输送中浓度与能耗之间的矛盾。 |
| 7. | Along the axes , the pressure near to the pipe wall is increasing and reducing at the pipe centre . based on the experiment , research on the characteristics of the spiral flow by using numerical simulation is feasible . this paper enriched the theory of sediment transportation by spiral pipe flow
太原理工大学硕士学位论文在物理模型研究的基础上应用数值模拟来进一步研究螺旋流特性是可行的，这项研究充实了圆管螺旋流输送理论，并为其在工程上的推广应用奠定基础。 |
| 8. | Abstract : causes for porosity occurrence in welding seams were investigated by means of statistic analysis of the porosity degree of welding seams of the submerged arc weld spiral pipes made with x65 and q235 steels from different works and mating weld materials , and of selecting proper mating material on the basis of different oxygen contents in the base metals
文摘:通过对不同厂家生产的x65级和q235钢材与不同的焊接材料相匹配所生产的螺旋埋弧焊管焊缝内的气孔进行统计分析，并从钢材中氧含量的多少及其焊接材料匹配的不同，来研究焊缝中气孔产生的原因。 |
