flexible gearing

例句：

1. 1. The company's new product line has a flexible gearing that can adapt to various market demands.
   该公司的新产品线具有灵活的传动比，可以适应各种市场需求。
2. 2. The engineer designed the machine with a flexible gearing that could easily be adjusted for different tasks.
   工程师设计的机器具有灵活的传动比，可以轻松调整以适应不同的任务。
3. 3. In this project, we need to ensure that the flexible gearing is reliable and efficient.
   在这个项目中，我们需要确保灵活的传动比是可靠和高效的。