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关注：1
2013-05-23 12:21
求翻译：回声测声仪是利用超声波从发射至被反射接收的时间间隔来确定水深是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
回声测声仪是利用超声波从发射至被反射接收的时间间隔来确定水深
问题补充： |
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2013-05-23 12:21:38
Echo sounder acoustic instrument is the use of ultrasound is reflected from the transmitter to the receiver to determine the depth interval
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2013-05-23 12:23:18
echo sounder sing yee is using ultrasonic from the launch to be reflective of the reception to determine water depth interval
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2013-05-23 12:24:58
The echo sound ranging instrument is to is reflected using the ultrasonic wave from the launch the receive the time-gap definite water depth
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2013-05-23 12:26:38
Is the use of ultrasonic echo sounder acoustic instrument were reflected from the launch to receive every to determine water depth
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2013-05-23 12:28:18
Is the use of ultrasonic echo sounder acoustic instrument were reflected from the launch to receive every to determine water depth
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