also david, "crane-like structure used to lower things off a ship, etc.," late 15c., apparently a use of the masc. proper name David on the pattern of applying common Christian names to useful devices (compare jack, jenny, jimmy).
雙語例句
1. Inspection the structure and loading test of the lifeboat ( Rescue boat ) davit.
救生 ( 助 ) 艇吊架結(jié)構(gòu)和壓重試驗.
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2. Suez Canal searchlight, but socket and davit to be supplied by builder.
蘇伊士運河探照燈, 但插座和吊柱由建造方提供.
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3. The strength test for davit.
艇架強度試驗.
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4. Start the davit motor. Ready for lowering.
起動吊柱馬達. 準(zhǔn)備放艇.
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5. All sheaves and rollers of life boat davit to be overhauled , cleaned, greased and reassembled.