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单词 depth-keeping
释义

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depth-keeping
depth-keeping adj. and n. the maintenance of a submarine, fishing-net, etc., at a certain depth.
Π
1916 R. Kipling Tales of ‘Trade’ i. 6 Depth-keeping,..very difficult owing to heavy swell.
1923 Blackwood's Mag. Oct. 527/1 Accurate depth-keeping being out of the question, I surfaced.
1959 H. Barnes Oceanogr. & Marine Biol. i. 26 Modern practice is tending more to the use of a depth-keeping device, either on the net itself or on the towing wire... The paravane principle is often employed.
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