And top administrators are criticized for failing to send out a warning message about the shooting for almost two hours.
并且高级管理层的失职受到了批评，枪击案发生将近二个小时才发出警告信息。
When the light of a back vehicle is irradiated to an optical control device, the vehicle lamps which are connected can send out warning signals.
当后部车辆灯光照射到光控器后能使连接的车灯闪光发出警示信号。
After the neon warning lamp is connected with a power supply, the neon warning lamp can send out rhythmic triangular warning red light with a pattern under the control of a transformer and the strobe.
本警示灯接上电源后经变压器和频闪器控制可发出有节奏的三角形警示图案的红光。
After the neon warning lamp is connected with a power supply, the neon warning lamp can send out rhythmic triangular warning red light with a pattern under the control of a transformer and the strobe.
本警示灯接上电源后经变压器和频闪器控制可发出有节奏的三角形警示图案的红光。
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