echo-sounding instrument_石油英汉词典
echo-sounding instrument
[石油英汉词典]
echo-sounding instrumentn.回声测深仪
是什么意思，echo-sounding instrument的解释，echo-sounding instrument的翻译
n.回声测深仪
echo-sounding instrument_石油英汉词典echo-sounding instrument
[石油英汉词典]
echo-sounding instrument是什么意思，echo-sounding instrument的解释，echo-sounding instrument的翻译
