校园警官Wendell Flinchum说 警方在案发后接到两则911报警，并于案发一分多钟后到达现场，将朱海洋逮捕。
Police received two 911 calls shortly after 7 p.m. Wednesday, and were on the scene in a little more than a minute to take Zhu into custody, Virginia Tech Police Chief Wendell Flinchum said.
手动复位报警信号，如果信号复位还是报故障则向项目工程师或是领导报告。
Handle reset alarm signal, if there is still in failure, technician on duty must report to project engineer or leader.
检查报警区域的设备和环境清洁状况，如果存在脏物则通知工程部清洁处理。
Check alarm area equipment and environment cleaning state, if dirty, then report Eng Dept. to take actions.
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