The Reviewer 2's Comments for the First Peer-Review

Siming Zheng
Dear PAA editor,Hello. There are the previous comments made by Reviewer 2 during the period of first peer-review. Hopefully, we hope that you can refer to it continuously during the third stage of peer review.Thank you for your reference.Sincerely,Szeming Cheng.
doi:10.6084/m9.figshare.13379783.v1 fatcat:rvvlc6b4wne27ftbhbo5x5a2py