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to phrases
sounding device
gen. 回声探测仪; 测海洋深度回声测深装置
bridg.constr. 触探装置
met. 探料设备
nautic., tech. 测深器回声测深仪
tech. 声测探器; 测深设备; 发声装置
sounding device: 10 phrases in 7 subjects
Earth sciences1
Electronics1
Metallurgy1
Mining1
Nautical1
Oil / petroleum1
Technology4