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).
双语例句
1. Inspection the structure and loading test of the lifeboat ( Rescue boat ) davit.
救生 ( 助 ) 艇吊架结构和压重试验.
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2. Suez Canal searchlight, but socket and davit to be supplied by builder.
苏伊士运河探照灯, 但插座和吊柱由建造方提供.
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3. The strength test for davit.
艇架强度试验.
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4. Start the davit motor. Ready for lowering.
起动吊柱马达. 准备放艇.
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5. All sheaves and rollers of life boat davit to be overhauled , cleaned, greased and reassembled.
