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Terms for subject Oil / petroleum containing 回声 测 深 | all forms | in specified order only
ChineseEnglish
倒置回声测深inverted echo sounder
回声测深echo depth sounding
回声测深echometer
回声测深自动记录仪echograph
回声测深记录echogram
回声深测仪echo-sounding device
综合回声测距与测深combined echo ranging and echo sounding
自记回声测深recording echo sounder