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回声测深仪 huíshēng cèshēnyí
gen.	marimeter
earth.sc.	echo-sounding device
el.	echo sounding machine; deep-sea lead
eng.geol.	acoustic sounder; depth recorder; echometer; sonic echo depth finder; sonic sounder
hydroel.st.	fathometer; echo sounding apparatus; echo depth sounder; echograph
mining.	sonic depth finder
nautic., tech.	depth sounder; echo sounding device
shipb.	echo-sounder; acoustic depth-finder
tech.	acoustic depth finder; acoustical depth finder; acoustical sounder; depth indicator; echo depth sounding sonar; echo sounder machine; echo-sounding apparatus; echo-sounding instrument; echo-sounding machine; sonic depth sounder; sonic echo sounder; sonic sounding-ger; underwater sound gear
UN, geol.	echo sounder
回声〔回音〕测深仪
construct.	sonic echo sounder
tech.	sonic depth finder

回声测深仪: 73 phrases in 10 subjects

Business	1
Earth sciences	5
Hydroelectric power stations	3
Nautical	1
Navigation	3
Oil / petroleum	4
Shipbuilding	9
Space	1
Technology	45
United Nations	1