guard thrust

例句：

1. 1. The spacecraft's mainthrust engine is responsible for propellingthe spacecraft into space.
   太空船的主要推进引擎负责将太空船送入太空。
2. 2. Themissile was designed to provide a powerful protectivethrust against enemy attackers.
   导弹被设计为提供强大的防护推力，抵御敌军的攻击。
3. 3. The new rocket technology will enableus to achieve higher speeds and greaterthrust in our space missions.
   新的火箭技术将使我们能够在太空任务中实现更高的速度和更大的推力。