查询词典 contact rail

The feedback of К190ПК rail flash welding machine was low, and it's difficult to weld U75V steel alloy rail with continuous flash butt welding process. The software and hardware of control system has been reconstructed to solve these problems.

针对К190ПК钢轨闪光焊机响应速度慢，只具有连续闪光焊工艺，难以实现U75V钢轨的焊接等问题，对焊机控制系统的软、硬件进行了改造。

Freight pricing by truck and rail has steadily been rising while inland towing has displayed more significant increases and volatility as compared to truck and rail.

卡车和铁路运价保持平稳上升，相比之下，内陆拖船运价则增幅更大，波动更明显。

Through technology research and productive practice, in this article the main reasons are analyzed for causing knitting cross rail in the developing process of half-worsted yarn manufacturing blended spinning knitting yarn, and concreted measures to reduce knitting cross rail are summarized.

通过工艺研究和生产实践，分析了在开发半精梳毛混纺针织纱过程中，造成针织产品产生横档的主要原因。

Research conclusions: The main influencing factors on design of rail fastenings for ballastless track are rigidity, insulation property, rail height and gauge adjustment ability.

研究结论：影响无碴轨道扣件设计的主要因素是合理刚度、绝缘性能和钢轨高低、轨距调整能力，可按节点静刚度25～50 kN/mm，钢轨高低调整量不小于30 mm，轨距调整量-10～＋10 mm，道床电阻不小于3Ω·km进行扣件设计。

The precise guide rail is the precisely made machinery high-duty rail andit can assure the high precision and stability during the whoIe working period.

精密导轨由重负荷精加工的路轨制成的机器导轨保证机器整个工作期间的高精度和稳定。

Loosen the rail lock nuts and remove the rail spacer wedges from all four anchoring stands.

松开轨道锁定螺母，并从全部4个支承支架上卸下轨道隔离楔。

The main contents and results of this paper are listed as follows:Based on the finite element analysis software ANSYS establish a bridge of three-dimensional mechanical model of CWR;Based on an actual project,calculate different conditions of three forms of bridge and research the reasonable removal scope of fastener;Research on the allowed lock temperature rail track construction of partial maintenance of range.By analyzing the result obtain the best way to replace the support of a bridge and the range of removal of the bearing and permission of rail temperature of construction.It supports some recommendations for the replacement of city construction maintenance.

本文主要研究内容为：基于有限元分析软件ANSYS建立了桥上无缝线路三维力学模型；依据某实际工程，分析计算了三种桥梁形式在不同顶升工况下的钢轨和扣件受力，研究了扣件的合理拆除范围；对维修后局部钢轨施工锁定轨温的允许范围进行了研究；分析得出了城轨桥梁更换支座施工的最佳顶升方式、扣件拆除范围和允许施工轨温，为城轨桥梁更换支座的施工维修提出了一些建议。

The bump ing tests of H-shaped posts and O-shaped posts with W-beam guard-rail for the expressway guard-rail were carried out, the test results were analyzed and compared with the traditional guard-rails in this paper.

本文对轻型H型钢和O型钢高速公路护栏作撞击试验，并作了相应的分析研究。

Approval;Approved organizations;Bend testing;Butt welding;Definition;Definitions;Design;Dimensions;Electric welding;Flash welding;Inspection;Materials;Metal sections;Order indications;Performance tests;Permanent ways;Profile;Quality;Rail joints;Rails;Railway applications;Railway rails;Railways;Resistance welding;Sections;Specification;Steel welding;Steels;Suitability;Testing;Tracks;Travel ways;Vignol rail;Weldability;Welded joints;Welding;Welding engineering;Welding equipment;Welding processes;Weldings

中文主题词认可；受批准组织；弯曲测试；对接焊；定义；设计；尺寸；电焊；闪光焊；检验；材料；金属型材；顺序示度；性能试验；永存性铁路；轮廓；质量；钢轨接头；钢轨；铁路设施；铁路钢轨；铁路；电阻焊接；型材；规范；钢件焊接；钢；适宜性；测试；轨道；旅行线路；丁字形铁轨；可焊性；焊接接头；焊接；焊接工程；焊接设备；焊接工艺；焊接法

Research on the Macro Distribution Plan of Modern Rail Logistics Center;2. Because the transit period of rail goods isn t guaranteed, it has been an important reason of influencing competition ability in the transport market.

系统总结国外铁路投资、补贴、税收政策新发展趋势，分析我国现有的铁路发展政策与国外的差距，指出我国要进一步完善铁路发展政策环境，促进铁路又好又快发展。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"