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echo sounder
释义
echo sounder
n.
(名词)
A device for measuring depth of water by sending pressure waves down from the surface and recording the time until the echo returns from the bottom.
回声测深器:一种通过向水面发射压力波,并记录水底反射回波到达原发射地的时间来测量水深的仪器
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Niño
NJ
Nkrumah
NKVD
nl
NL
NLF
NLRB
NLT
nm
NM
NMex.
NMI
NMR
NNE
NNW
no
no
no
No
no.
NOAA
no-account
Noachian
Noachic
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更新时间:2025/8/19 3:40:19