“life preserver”的概念、定义、翻译、参考文献-科学参考

单词	life preserver
释义	life preserver [`līf pri´zǝr·vǝr] ^ENGINEERING A buoyant device that is used to prevent drowning by supporting a person in the water.
随便看	Honigmann process honing honing gage hood hoodmold hood test hoof hoof-and-mouth disease hoof oil hook hookah hook-and-eye hinge hook bolt hook collector transistor Hookean deformation Hookean solid hooked spit Hooke number hooker Hooker diaphragm cell Hookeriales Hooker process Hooke's joint Hooke's law hook gage

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