操纵帆桁下部索具

例句：

1. 1. The engineer was able to manipulate the machine to produce high-quality parts.
   工程师能够操控机器生产高质量的零件。
2. 2. The scientist is trying to manipulate the data to find a solution.
   科学家正试图操纵数据以找到解决方案。
3. 3. The pilot was able to manipulate the plane to land safely.
   飞行员成功地操纵飞机安全着陆。