| 关键词 | 首次出现年 | 突现强度 | 突现开始年 |
| industry 4 | 2019 | 12.47 | 2021 |
| additive manufacturing | 2015 | 6.75 | 2021 |
| smart manufacturing | 2019 | 6.6 | 2019 |
| machine learning | 2021 | 6.54 | 2021 |
| industry 4.0 | 2019 | 6.29 | 2019 |
| artificial intelligence | 2019 | 4.7 | 2021 |
| augmented reality | 2019 | 4.44 | 2021 |
| digital twin | 2019 | 3.96 | 2021 |
| Challenges | 2017 | 3.81 | 2017 |
| behavior | 2008 | 3.77 | 2021 |
| open innovation | 2021 | 3.37 | 2021 |
| engagement | 2021 | 3.37 | 2021 |
| future | 2007 | 3.19 | 2019 |
| co creation | 2013 | 3.19 | 2019 |
| things | 2017 | 3.1 | 2019 |