“oxygen mask”的概念、定义、翻译、参考文献-科学参考

单词	oxygen mask
释义	oxygen mask [`äk·sǝ·jǝn ´mask] ^ENGINEERING A mask that covers the nose and mouth and is used to administer oxygen.
随便看	pavement pavement light paver pavilion pavilion facet paving brick paving-brick clay Pavlov's pouch Pavo pavonite Pavy's solution paw pawdite pawl PAX paxilla Paxillosida Paxillosina payback period pay dirt paying payload payload-mass ratio payoff matrix pay ore

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。