1、
station registration failure is 19: 39, the equivalent of interlocking machine time 19: 42.
车站登记故障时间是19点39分，相当于联锁机时间19点42分。
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2、
Design of machine and control equipment and safety interlocking in ￣( 60) Co irradiation
~（60）Co辐照装置机电设备和安全联锁系统的设计
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3、
upgrade revamp of plc interlocking control systems of five main machine units
五大机组PLC联锁控制系统升级改造
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