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司闸员，制动手操纵、检查或维修闸的人，通常指协助列车员和检查火车制动器性能的铁路雇员。
One who operates, inspects, or repairs brakes, especially a railroad employee who assists the conductor and checks on the operation of a train's brakes.
此外，为了防止深孔闸墩部位的裂缝发生，设计采用对闸墩施加曲线形预应力锚索以消除或减小拉应力。
Moreover, curve prestressed anchorage cables are applied to eliminate or minish the tensile stress to prevent the cracks appearing on the deep orifice gate blocks.
文中讨论了影响选型的诸多因素，如闸室平面尺寸、输水阀门工作条件、单级或多级船闸的影响等。
Besides, many affecting factors, such as lock chamber dimensions, lock valve conditions and single or multi flight lock situations have been discussed.
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