Funding for this research was provided by:
Science Challenge Project (TZ2016006-0504-01)
High-end CNC Machine Tools and Basic Manufacturing Equipment Major National Science and Technology Project (2017ZX04022001)
National Natural Science Foundation of China (61605182)
Article History
Received: 4 February 2020
Revised: 7 December 2020
Accepted: 17 December 2020
First Online: 13 January 2021
Compliance with Ethical Standards
:
: The authors declare no conflicts of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.