在燃着物体距接触网带电部分不足()m又未停电的情况下,不得使用水和一般灭火器。...
Thursday, September 22, 2022
轴承零件退磁后,应逐个进行剩磁检查,其剩磁不超过()mT为合格...
Thursday, September 22, 2022
钢轨在某一部位变形(轨头扩大、轨腰扭曲或臌包等),经判断确认内部有暗裂的伤损为钢轨()。...
Thursday, September 22, 2022
Saturday, September 17, 2022
Thursday, September 22, 2022
单根抽换桥枕新桥枕面与轨底间铺上防磨胶垫厚度不得大于()。...
Thursday, September 22, 2022
在燃着物体距接触网带电部分不足()m又未停电的情况下,不得使用水和一般灭火器。...
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 15, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
填空题校正斜探头探伤灵敏度常用的基准缺陷型式大多是()。...
Sunday, January 7, 2024
大型养路机械走行系统每工作400h,需更换车轴轴承箱的(),检查轴承有无损伤,必要时进行探伤检查。...
Thursday, September 15, 2022
Wednesday, September 21, 2022
Tuesday, August 9, 2022
连接超声波探伤仪和探头的电缆,是由一层导体将另一根带绝缘层的导线包在中心,这种电缆称为()。...
Wednesday, September 21, 2022
Sunday, September 18, 2022
什么是温度跨度?对于简支梁、悬臂梁、拱桥是如何测定的?...
Wednesday, September 21, 2022
Saturday, September 17, 2022
在燃着物体距接触网带电部分不足()m又未停电的情况下,不得使用水和一般灭火器。...
Thursday, September 22, 2022