This is a machine-generated certificate and no signature is required.
这份证明由机器印刷，无需签名即可生效。
2
Here's why: Using software developed by Northwestern University, Narrative Science specializes in machine-generated stories.
原因：西北大学开发的叙事科学软件，其专长是用机器生成新闻。
3
The goal is for users to be able to watch and learn from the lip movements of a native speaker dictating any sentence, even though each video is machine-generated.