The utility model relates to an automatic warning device for the unmanned railway crossing, belonging to a signal device of the railway, comprising a warner, a magnetic starting device and a switch. 铁路无人看管道口自动报警装置,属于一种铁路信号装置,由报警器、磁力启动器和开关组成。
A development of a performance test instrument for the automatic starting device of motor cycle engines, principle and application of sensor, technology of interface circuit and A/ D transfer board are introduced. 介绍了摩托车发动机自动起动装置性能测试仪的研制、传感器的原理与选用、接口电路与A/D转换板的关键技术。
Development of a Performance Test Instrument for the Automatic Starting Device of Motorcycle 摩托车自动起动装置性能测试仪的研制
Upgrading of automatic starting device for auxiliary standby power source 厂用备用电源自投装置的改进