“L-HOUR” 英文缩写

• L-Hour Specific Hour On C-Day At Which A Deployment Operation Commences or is to Commence    C日开始或即将开始部署操作的特定时间
• L-HOUR Launch Hour (The specific hour on C-day at which a deployment operation commences)    发射时间（C日开始部署操作的特定时间）