“kopfring”的概念、定义、翻译、参考文献-科学参考

单词	kopfring
释义	kopfring [`käpf´riŋ] ^ORDNANCE A metal ring which is attached to the nose of a bomb to reduce its penetration in earth or water.
随便看	instantaneous effects instantaneous field of view instantaneous frequency instantaneous frequency-indicating receiver instantaneous fuse drag chain drag-chain conveyor drag chute drag classifier drag coefficient drag conveyor drag-cup generator drag-cup motor drag-cup tachometer drag cut drag direction drag factor drag fold drag force dragging of inertial frames drag-in dragline dragline conveyor dragline excavator dragline scraper

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