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摩擦驱动装置由电机、减速器、摩擦轮等组成的一套传动系统,装设在一个平衡杠杆梁上,当斜架车运行至厢底摩擦轨道承压在摩擦轮上时,通过()的作用以保证在轨道和摩擦轮之间的轮压,进而产生摩擦力来驱动斜架车运行,越过驼峰。
针对高血压患者存在的各种不健康的生活方式应进行多方面干预,循序渐进,逐步改善,持之以恒
采样板取样电路的组成包括()。
关船舶修理的修理单,正确的说法是()
下列用电器利用了电流的热效应来工作的是( ).
电气火灾突发在高空设备或设施时,人体与带电体的仰角不应超过()°。
下列不通过颈静脉孔的结构是()
钻具组合(钻具配合)
不参与构成远侧列腕骨的组织是()
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