Open Access
表9
符号串内容
| 名字 | 说明 |
| name | 符号名, 即变量名 |
| token type | 符号类型 |
| tokens | 符号中包含的符号, 若不包含其他符号则为空 |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
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