The electric parameters of rail circuit must be measured periodically to check if the signal system is in good condition and to avoid accident.
定期在线检测电气化铁道轨道电路参数，可确保信号设备工作在最佳状态，避免行车事故。
In order to avoid accident, don't touch the critical part of the equipment, including the power cord of the electric stove, the switchboard, the adjustment instrument and so on.
设备危险区如电炉的电源导线、配电屏、调整仪表等不得随便触动，以免发生事故。
Some examples for the diagnosis by the infrared imaging system such as generators, capacitors and connectors in service are presented. The defects are detected to avoid accident.
文中通过若干实例介绍了用红外热象仪检测带电运行的发电机、电容器及连接头，并查出带有严重缺陷的部位，从而避免事故发生。
Connection between dam, foundation, bank slopes and other structures has to be strengthened, and drainage and anti-filtering facilities have to be properly arranged to avoid accident mentioned above.
加强坝与地基、岸坡或其他建筑物的连接，合理布置排水及反滤设施，以避免事故的发生。
Connection between dam, foundation, bank slopes and other structures has to be strengthened, and drainage and anti-filtering facilities have to be properly arranged to avoid accident mentioned above.
加强坝与地基、岸坡或其他建筑物的连接，合理布置排水及反滤设施，以避免事故的发生。
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