echo-sounding receiver
echo-sounding receiver
[石油英汉词典]
echo-sounding receivern.回声测深接收机
是什么意思,echo-sounding receiver的解释,echo-sounding receiver的翻译
echo-sounding receiver
[石油英汉词典]
echo-sounding receiver是什么意思,echo-sounding receiver的解释,echo-sounding receiver的翻译