Funding for this research was provided by:
Gansu Natural Science Foundation Project (18JR3RA267)
Scientific Research Project of Lanzhou Country Garden Real Estate Development Co., Ltd (071100090)
Article History
Received: 4 March 2021
Accepted: 14 August 2021
First Online: 30 August 2021
Ethical approval
: The content of this paper is compliance with ethical standards and all authors have contributed to, read and approved the manuscript. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.