“喷管扩张比--喷管（面积）扩张比”概念、定义、翻译-科学时代

单词	喷管扩张比--喷管（面积）扩张比
释义	航空航天词汇手册 nozzle area expansion ratio 喷管（面积）扩张比
随便看	sound level meter sound localization soundman soundman soundman sound market value sound mixer sound mixer sound motion picture sound navigation and ranging sound navigation and ranging（sonar） soundness soundness soundness soundness soundness of modal propositional calculus soundness of system S4 soundness of system S5 soundness of system T sound note sound OB van sound on sound sound on vision sound pattern of English sound pattern of English--sound pattern of English（SPE）

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

nozzle area expansion ratio