| 1. | The maximum density is governed by the allowable limit of fluidity for hydraulic transport .
最大密度是由水力输送所容许的流态极限控制的。 |
| 2. | The flow resistance is the basic problem in pipeline hydraulic transport of solid particles
管道阻力特性研究是管道水力输送固体物料最基本的问题。 |
| 3. | The work of this paper lays the solid foundation for the experimental research on dredging pump performance and hydraulic transport properties
本文所作的工作为疏浚泥泵与管道水力输送实验系统的实验研究打下了坚实的基础。 |
| 4. | In this paper , different approaches are employed to analyze the flow resistance of different flow patterns when transporting sands with different size
本文对不同粒径泥沙管道水力输送时的不同流态，采用不同方法进行了分析研究和理论探讨。 |
| 5. | Dredging pump and hydraulic transport experimental system proposed in this paper is mainly used for the experimental study of dredging pump performance and the solid - liquid two - phase flow in pipelines
本文研制的疏浚泥泵与管道水力输送实验系统，主要用于疏浚泥泵性能及管道固液两相流的测试研究。 |
| 6. | The cast basalt pipes owing to an excellent performance of abrasive and corrosion resistance . it may be used as the liner of pipeline for hydraulic pneumatic conveyance of abrasive corrosion materials or slurry . we can offer the cast basalt pipes with nominal diameter of 40mm800mm
玄武岩铸石具有极好的耐磨损抗腐蚀性能，可作为电力化工冶金矿山煤炭等部门气力或水力输送磨损腐蚀性物料和浆料的管道系统的衬里。 |
| 7. | For the case of transporting suspended fine sand , a single - fluid model is used to calculate the flow resistance by solving the navier - stokes equations . the computed agrees well with the measured . and for the case of transporting medium - sized sand , a two - layer model is used and the model produces a good agreement with the experiment data
对管道输送细沙悬移质的流场，采用单流体模型进行数值求解n - s方程，计算结果与实验资料相吻合;对具有分层流动的中沙管道水力输送，采用两层代数模型进厅了计算分析，阻力损失的预测结果与实验吻合较好;最后对管道输送粗沙的阻力特性和运动机理进行了分析探索，提出了进一步研究的方向。 |
