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signal alarm
auto. 发声警告器
compr. 报警器
construct. 警报 〔警音〕器
oil 警报器
tech. 喇叭; 警报信号; 报警信号
wind. 信号报警
signal alarm
: 49 phrases in 15 subjects
Aviation1
Business1
Drilling1
Electronics9
Exhibitions1
Hydroelectric power stations1
Information technology2
Metallurgy3
Oil / petroleum3
Rail transport1
Shipbuilding2
Space1
Technology18
Telecommunications4
Wind Energy1