closing modules

例句：

1. 1. The software developers are working on the latest version of the operating system.
   软件开发人员正在开发操作系统的最新版本。
2. 2.The engineers are testing the new machine's closing modules to ensure they work correctly.
   工程师们正在测试新机器的关闭模块，以确保它们正确工作。
3. 3. The company is investing in new technologies to improve its closing modules.
   该公司正在投资新技术来提高其关闭模块的性能。