unpowered phase

例句：

1. 1. Theunpowered phase of the project is crucialfor its success.
   项目无动力阶段对于其成功至关重要。
2. 2. During the unpowered phase, we had to rely on our ownresources.
   在无动力阶段，我们不得不依靠自己的资源。
3. 3. Theunpowered phase was atime of great uncertainty and hardship.
   无动力阶段是一个充满不确定性和困难的时代。