three-stage parachute

例句：

1. 1. The three-stage parachute system is designed to provide a smoother descent for pilots during emergency landings.
   三级降落伞系统设计用于在紧急着陆时为飞行员提供更平稳的下降。
2. 2. In the event of an emergency, the three-stage parachutewill automatically activate and provide additional protection forthe pilot.
   在紧急情况下，三级降落伞将自动激活，为飞行员提供额外的保护。
3. 3. The three-stage parachute has been proven to be more effectivein reducing the risk of fatalities duringhigh-altitude crashes.
   三级降落伞已被证明在高空坠机事故中能更有效减少致命风险。