reverse frame

例句：

1. 1. The engineer designed a reverse frame to support the heavy load.
   工程师设计了一个倒置框架来支撑重载。
2. 2.The car's engine was mounted in a reverse frame for better efficiency.
   汽车的引擎被安装在倒置框架中，以提高效率。
3. 3.The scientist used a reverse frame to analyze the data collected from the experiment.
   科学家使用倒置框架来分析实验收集的数据。