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automatic block system
archit. 自动闭塞装置闭锁系统
construct. 自动联〔闭〕锁装置
met. 自动闭塞系统; 自动闭塞装置
oil 自动切断系统
plast. 自动联锁装置
railw. 自动闭塞
tech. 自动闭锁系统; 自动区截制
telecom. 自动闭塞制
automatic .block system
el.mach. 自动闭锁系统
automatic . block system
: 25 phrases in 4 subjects
Communications5
Electronics2
Rail transport5
Technology13

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