喷管扩张比的英文

• nozzle area expansion ratio
• nozzle-expansion ratio

• 扩张:    expand; enlarge; spread
• 比:    2
• 喷管扩张:    nozzle divergence
• 喷管扩张率:    nozzle expansion ratio
• 扩张比:    divergence ratio; expansion ratio

例句与用法

1. Design optimization of chamber pressure and nozzle area expansion ratio of solid rocket motors
   固体火箭发动机燃烧室压强及喷管扩张比优化设计