这是什么? Google DLL?

DLL (Dynamic Link Library) files are reusable software code libraries used by Windows applications to perform specific functions without needing to include all the necessary code within their own file. These files enhance performance and efficiency by allowing shared use of common components, reducing redundancy, and optimizing system resources. In the context of Google's operations, DLLs might be utilized across various services and tools developed or employed by the company for tasks such as data processing, user interface rendering, and network communication.